Last month there was a "hackathon" by Like for Israel to create innovative pro-Israel apps (mobile, Facebook, web.)
Here are some of the apps developed over a weekend:
Israel Challenge trivia game on Facebook
Israeli Foods - wine and food blogs and videos, for Android
2See Israel - Aggregator of Israel photos, for Android
The Truth About Israel - factual information about Israel written in Arabic, for Android (website)
Like Israel - automatically put a "Like" stamp on any nice photos you take in Israel, for iPhone
Delegit - Chrome app that allows you to report any websites that attempt to delegitimize Israel when you come across them
Not bad for a couple of days.
You can visit the Like for Israel Facebook page for more info.