I think the 1750 battery is a complete waste of money, I got 2 TP2 1500 batteries with charger for $15 on Ebay and they are great in my Eris giving at least an extra 10% of life at the end of the day.
If you are going to spend $50 get the 2150mah battery with the new cover the cover is supose to be only 1mm thicker (which IMO will give the Incredible a more firm feel to it as I think it's a little on the thin size) plus it's an OEM battery and you most likely will be much happier with it
Just giving my 2cents
How do you know the ext battery is OEM? So it's by HTC? I'm pretty sure I sa the brand listed as Superior which doesn't sound OEM.
I jet hope a case comes out that accommodates the thicker ext battery.
Any word on such a case? Will any of the silicone cases stretch enough to fit the extra 1 mm that the thicker battery adds to the phone?

Just my .02
