@Nef. or anyone who has solved this. I have the same issue. most apps will not work. Some of Amazon work, most on Play store (former android market) do not. Cleared cash and data on all Google applications with re-starts. I have re-flashed a few times but still the same, I can side load from my phone, but this is an issue. Came directly from Updated Coby Froyo. a non rootable ROM. Also WiFi still buggy, weak and signal loss frequently. WiFi fixer helps but not real good. Thanks.