720p would be impressive over 3G. No, it is not that awesome. :P Yes, you can't make video calls to your friends microwave oven - they'll need to use whatever

720p would be impressive over 3G. No, it is not that awesome. :P Yes, you can't make video calls to your friends microwave oven - they'll need to use whatever protocol you are using. And yes, the N900 supports gtalk as well (although I haven't tried video chat with it myself).