a restart entry in the power menu would be helpful..
if it's possible to customise stock phone app: * larger contact photo; * some "slide-to-answer" stuff. `cause sometimes proximity sensor tends to lag and call may be answered/discarded with random touch inside the pocket; * maybe larger size of skype video; * notification area - some additional button to mark sms as read without opening the whole messages app. useful for some technical messages with the same text.