I really think people only have trouble with uboot because of a lack of willingess to figure things out. I think I heard one guy who had an issue, because his SD card happened to have a partition uboot thought was bootable. Even that can be fixed with a boot.src, I'm pretty sure.

I mean, it's extras devel. It's called devel for a reason. You don't go there unless you're willing to have stuff not work. And you sure as hell can file bugs and make criticisms, but not complain about it when stuff breaks, because the whole point of devel being there is so that **** can be tested by developers or those willing to experiment and learn and break their device.