Build android based digital signage player

[Shagan]

Hi Guys,

As part of my past-time work, i am planning to build an android based
digital signage player.
It is pretty much an evaluation board running gingerbread connected to
a touch screen.
I have compiled the source code, but it seems to have lots of android
functionality that i dont need. Like phone/contacts etc.
I made changes to core.mk & generic.mk and hoping that is going to
remove few apps.
Wondering if you guys can help me identify apps/providers that are
safe to remove, given that i need only wifi feature alone.

thanks
Shagan