Hi Friends,
This is my attempt for answering many questions about N900 Operating frequency, connectivity and data network availability (3G, 2.5G. Edge, GPRS, At&t etc).
Most of the users realize that the phone they just purchased has no 3G coverage in their country or carrier later. So reading this post before buying N900 or any smart phone may help you.

Read my blog post here.

Be careful before making a big purchase like N900. Don't get disappointed later.