2/ You will need to modify existing apps to work with the new SDK. To do this open your manifest.xml file and locate <iq:application ... name="*" ...> (where * is your app name).
<iq:manifest xmlns:iq="www.garmin.com/.../connectiq" version="1">
<iq:application entry="FixApp" id="E21311C04BC542DABF4A6C1E87F9449D" name="Fix" type="watch-app">
.......
</iq:manifest>
Next open your resource.xml file and add <string id="*">Type an app name here</string> as a child of <resources>
<resources>
<string id="Fix">Fix app</string>
......
</resources>