first of all i am on pay as you go and i get hsdpa connection.

secondly you will be able to use all features on gprs if no 3g/hsdpa connection available, it will just be slower.

 

The desire really is designed for a 3G connection or better. You can use it on slower connections, but it's not really designed with that in mind.

 

At home I only get gprs connection and everything works well just slower. That's the great thing about the desire and the multitasking android offers. You can do something else while data is downloading and not even notice any delay.

 

Incorrect. There's a lot more load on the battery when you're actually doing something over GPRS than when it's just sitting idly, which is why making a phone call eats battery power.