It works fabulous, but the only gripe I have is that there is no iTunes for Linux. When I tried to sync the Nano with Banshee, the Nano was crashing and had to restore it on a Windows machine. I need to spend some time on how to get sync to work on a Ubuntu machine.
BTW, my 4 year old son is very comfortable using LG Optimus One (Andriod) and iPAD (iOS) to play music, watch pictures and play games. The way many of us grew with bulky monochrome monitors, RAM in MBs, HDD in single digit GBs - many of the kids are growing with smart phones and tablets. When they grow and get a chance to decide for a tablet or a pc, there is no doubt on what they will pick.