1.) Calm down until you hear it from the horse's mouth. Apple doesn't design anything with out a reason. So IF they do go to a fixed battery, it's because they had to for design-sake.
2.) When was the last time you hot-swapped a battery BEFORE it died (I'm talking life-cycle)??? I've had 5 laptops, I am a professional designer, and I have NEVER had to do this. You run out of power, you plug it in.
I'm sure Apple will have an external plug in battery for $149 or something. So, if you carry an extra battery around anyways, what's the big deal?
3.) Firewire on a low-end computer like the mini, but not the MacBook, are you kidding me? My guess is Apple took a lot of heat for this and will acknowledge it on Tuesday. If it's on a $400 mini, it better be on the next MacBook.