bigtsr, nice to know it. This store is from Canada, where are you from?
Maximum Dude, this one is very interesting. I guess it would fit on my leather case, since it is not that tight. But i bet that 400 mAh on the larger bateries would made good diference... I guess even 2200 isn't much if I intend to use it for some hours in college, using the network. Something to think about...
Cervi, now that sounds good. You just bought it? It works?
It's strange, I don't think you can squeeze twice li-ion cells on the same space... but, never knows.
I've googled for accstation and just found it:
Li-Ion Battery for Dell Axim X50 / X50v / X51 / X51v
it's very cheap and it doesn't say anything about the capacity
thank you all for the answers!