I've said it once, I'll say it again.
I was a GP2X early adopter, and was subsequently dropped into a world of shoddy hardware and not an awful lot of apps/games/software, at a time when I really didn't have the ability to write or port anything for myself. I subsequently sold the GP2X.
The Pandora, however, has been quite fortunate that it's had this maturing period before it starts "mass" production and shipping. I imagine many of the guys buying late into Batch 1 and into Batch 2 will have the same instant gratification mindset that I did. Only this time, they'll get that gratification. They'll get it good.
My Pandora is coming dangerously close to shipping at the same time as the iPad 2, though. Grumble. A new Apple product release means I'm super-ultra-busy reviewing cases. All that awesome software is going to be a productivity killer.