I usually uninstall apps that I don't need. Google Mobile App. I like it because of the goggles feature, but I never use it.
The ipod app. I will no longer put any music on this thing.
So you didn't replace it, you just got rid of it?
Stocks, or Game Center
I haven't even touched my iPhone since I got my WinMoPho, also haven't touched my iPod. The thing is just so much slower than what I am used to, I fear that I won't use iOS again until I have a current gen device.
turbo bov2
I am suprised you lost your interest in iPhone...WinMoPho is too old unless you mean Windows Phone 7
I would have to say SkyFire. Will we ever get true Flash functionality on the iPhone ... though it probably doesn't matter since most sites (e.g. Hulu, etc.) won't allow it unless you pay a monthly subscription for their service/app.