and 24/44.1 seems kinda silly. and yeah, youd be getting "tape flip" style gaps when the 2 gb card ran out and youd have to switch to a new one.
And why does 24/44.1 seem silly? If you study Nyquist's theorem, as has been pointed out in several discussions I've been involved in with DSP engineers, you'll find that the sampling rate doesn't matter nearly as much after about 40K. The big band for the buck is going from 16 to 24 bits.
Looking at what a lot of tapers are using for mics, they really aren't going to be able to tell the difference between 24/48 or 24/96 and 24/44.1.
We spend a lot of time talking about specs and theoretics, yet we spend so little time really trying to experiment and understand why things work the way they do in the field.
2 GB is about 2 hours give or take a few minutes. Only rarely do I go to a show where pulling out a card and putting in a new card would be troublesome. In fact, most of the time the set break would be where you could do your card swap. Now, that's not to say that you won't end up on occasions running close or out of space at 24/44.1, but it's not going to be the norm, it will be the exception.
Anyhow, this isn't targeted directly at you, so don't take it like that.
Wayne