Hey there, I'm the developer of Sparge Pal and Brew Pal... I just started another thread notifying people of Brew Pal. Glad you like Sparge Pal (at least I assume you do ) Brew Pal is a huge upgrade: see http://nurl.knowfear.net/iphone/brewpal for more info. Another big update on the way too, hopefully in the next week or so!
Eh, Sparge Pal is calculating how much water to add, so I figured water would be better. Brew Pal is about the whole process so beer seemed more appropriate. Plus it gives a visual distinction between the apps. That's pretty much the extent of it