[schindyguy]

I'm not sure if anyone else mentioned this, but I think the "Chipper now on Mobile" and "Chipper now on Gtalk" is a great feature but I only realized what it did after I clicked on it. You should make the user understand that now "you can submit expenses to your mychipper account with Gtalk and Mobile SMS". Maybe look at how ping.fm organizes and makes the user understand this type of functionality.

I like the idea of creating a social aspect to it. Dont throw it their face, but give them an option to "share" their data and allow them to compare it to other mychipper users.

But I think you've got a dead simple app and good market to go after.