That pin change could be really annoying if you didn't know about it beforehand! But, forewarned, it's not a big deal.
Also, don't forget the 5V connection
PJRC sell a different regulator, but I don't know if it's compatible.
Sorry, don't forget what about the 5V connection?
Yeah, I saw a lot of ones in that packaging on ebay, but unfortunately they're a lot bigger and the pins don't match up. It'd be really ugly if I used them. Pity though, LM1117's are available on ebay for
about 16c each! Seems stupid that I need to pay 15x more and buy 5 at a time just to get the same thing in a different case with less current capacity. Oh well, that's how they get you, I'll have to buy them anyway.
The one I need will look like this: