Index: src/wp-admin/includes/upgrade.php
===================================================================
--- src/wp-admin/includes/upgrade.php	(revision 29260)
+++ src/wp-admin/includes/upgrade.php	(working copy)
@@ -2193,26 +2193,32 @@
 }
 endif;
 
+/**
+ * Output the input fields for the language selection form on the installation screen.
+ *
+ * @since 4.0.0
+ *
+ * @see wp_get_available_translations_from_api()
+ * 
+ * @param array $languages Array of available languages (populated via the Translations API).
+ */
 function wp_install_language_form( $languages ) {
-	echo "<fieldset>\n";
-	echo "<legend class='screen-reader-text'>Select a default language</legend>\n";
-	echo '<input type="radio" checked="checked" class="screen-reader-input language-chooser-input" name="language" id="language_default" value="">';
-	echo '<label for="language_default" lang="en">English (United States)</label>';
+	echo "<label class='screen-reader-text' for='language'>Select a default language</label>\n";
+	echo "<select size='10' name='language' id='language'>\n";
+	echo '<option value="" lang="en" selected="selected">English (United States)</option>';
 	echo "\n";
 
 	if ( defined( 'WPLANG' ) && ( '' !== WPLANG ) && ( 'en_US' !== WPLANG ) ) {
 		if ( isset( $languages[ WPLANG ] ) ) {
 			$language = $languages[ WPLANG ];
-			echo '<input type="radio" name="language" checked="checked" class="' . esc_attr( $language['language'] ) . ' screen-reader-input" id="language_wplang" value="' . esc_attr( $language['language'] ) . '">';
-			echo '<label for="language_wplang" lang="' . esc_attr( $language['iso'][1] ) . '">' . esc_html( $language['native_name'] ) . "</label>\n";
+			echo '<option value="' . esc_attr( $language['language'] ) . '" lang="' . esc_attr( $language['iso'][1] ) . '" class="language_' . esc_attr( $language['language'] ) . '" selected="selected">' . esc_html( $language['native_name'] ) . "</option>\n";
 		}
 	}
 
 	foreach ( $languages as $language ) {
-		echo '<input type="radio" name="language" class="' . esc_attr( $language['language'] ) . ' screen-reader-input language-chooser-input" id="language_'. esc_attr( $language['language'] ) .'" value="' . esc_attr( $language['language'] ) . '">';
-		echo '<label for="language_' . esc_attr( $language['language'] ) . '" lang="' . esc_attr( $language['iso'][1] ) . '">' . esc_html( $language['native_name'] ) . "</label>\n";
+		echo '<option value="' . esc_attr( $language['language'] ) . '" lang="' . esc_attr( $language['iso'][1] ) . '" class="language_' . esc_attr( $language['language'] ) . '">' . esc_html( $language['native_name'] ) . "</option>\n";
 	}
-	echo "</fieldset>\n";
+	echo "</select>\n";
 	echo '<p class="step"><span class="spinner"></span><input type="submit" class="button button-primary button-hero" value="&raquo;" /></p>';
 }
 
Index: src/wp-admin/js/language-chooser.js
===================================================================
--- src/wp-admin/js/language-chooser.js	(revision 29260)
+++ src/wp-admin/js/language-chooser.js	(working copy)
@@ -1,43 +1,2 @@
-(function($){
-	if ( $('body').hasClass('language-chooser') === false ) {
-		return;
-	}
 
-	var mouseDown = 0,
-		$fieldset = $('fieldset');
-
-	// simple way to check if mousebutton is depressed while accounting for multiple mouse buttons being used independently
-	document.body.onmousedown = function() {
-		++mouseDown;
-	};
-	document.body.onmouseup = function() {
-		--mouseDown;
-	};
-
-	/*
-		we can't rely upon the focusout event
-		since clicking on a label triggers it
-	*/
-	function maybeRemoveFieldsetFocus(){
-		if (mouseDown) {
-			setTimeout( maybeRemoveFieldsetFocus, 50);
-			return;
-		}
-		if ( $(':focus').hasClass('language-chooser-input') !== true ) {
-			$fieldset.removeClass('focus');
-		}
-	}
-
-	$fieldset.focusin( function() {
-		$(this).addClass('focus');
-	});
-
-	$fieldset.focusout( function() {
-		setTimeout( maybeRemoveFieldsetFocus, 50);
-	});
-
-	$('form').submit(function(){
-		$(this).find('.step .spinner').css('visibility','visible');
-	});
-
-})(jQuery);
+/* nothing here currently */
Index: src/wp-admin/css/install.css
===================================================================
--- src/wp-admin/css/install.css	(revision 29260)
+++ src/wp-admin/css/install.css	(working copy)
@@ -320,31 +320,16 @@
 	max-width: 300px;
 }
 
-.language-chooser fieldset {
-	margin: 1px;
+.language-chooser select {
 	padding: 8px;
+	width: 100%;
 	display: block;
 	border: 1px solid #ddd;
-	-webkit-border-radius: 0;
-	border-radius: 0; /* Reset mobile webkit's default element styling */
-	-webkit-transition: .05s border-color ease-in-out;
-	transition: .05s border-color ease-in-out;
-	outline: 0;
-	-webkit-box-shadow: inset 0 1px 2px rgba(0,0,0,0.07);
-	box-shadow: inset 0 1px 2px rgba(0,0,0,0.07);
 	background-color: #fff;
 	color: #333;
 	font-size: 16px;
-	font-family: inherit;
-	font-weight: inherit;
-	overflow-y: scroll;
-	height: 250px;
-}
-
-.language-chooser fieldset.focus {
-	border-color: #5b9dd9;
-	-webkit-box-shadow: 0 0 2px rgba(30,140,190,0.8);
-	box-shadow: 0 0 2px rgba(30,140,190,0.8);
+	font-family: Arial, sans-serif;
+	font-weight: normal;
 }
 
 .wp-core-ui.language-chooser .button.button-hero {
@@ -356,23 +341,6 @@
 	text-align: right;
 }
 
-.language-chooser input:checked + label{
-	  color:white;
-	  background: #777;
-}
-
-.language-chooser .focus input:checked + label{
-	  background: #0074A2;
-}
-
-.language-chooser label:hover {
-	  background: #eee;
-}
-
-.language-chooser label{
-	display:block;
-}
-
 .screen-reader-input,
 .screen-reader-text {
 	position: absolute;