Anybody bought the 1500mah battery from DealExtreme that is $5.01 (DealExtreme: $5.01 3.7V 1500mAh Rechargeable Li-Ion Battery for HTC Touch Pro 2)? If so, is it as good as the OEM 1500? Is there any risk to a non-OEM battery? Is there any way it can damage my phone? Thoughts on this deal...is it too good to be true?