We got rejected too.
We are building http://www.pajap.com . A DIY service that allows you to build 100% native mobile applications with a drag n drop designer without a single line of code.
Apps made with pajap don't have to bee installed on the phone or updated.
Videos http://goo.gl/WkVZ8 (sample app) http://goo.gl/Fhmbl (making of)
Enough with the promotion...
The rejection means we don't get to lean back and watch the magic show. We have to try , run , try again and create magic ourselves. We'll do that.
Best of luck to all YC2012ors accepted_or_not.