Do what I do.
Use wmwifirouter on your mogul.
Surf on a (relatively cheap) 8gb touch.
All the iPhone goodness, without the suckarse AT&T service - you'll be surfing faster too
One of the nice things about the iphone/touch is the half-vga screen vs the quarter vga screen on the mogul. More bits are better, no two ways about it.
I'll use PIE in a pinch, but it's gotta be for something that takes less then a minute (about as long as it takes to fire up wmwifirouter)
And yes, I have used all the alternative browsers. Its really just the screen size that is really unusable for all but the simplest of web-tasks.