I came to same conclusion, I got a white s10 put in 2gb ram and 320 hd, bought a mac box set 10.5.6 with iLife & iWork. I used the dellminiboot dellefi with 2 USB drives method. It was all too beautiful... 200gb iphoto & itunes organizing, candybar'd my icons & did a time machine back up... All too beautiful I tell ya... Until this morning, after a month of perfect use, no glich, everything fine, sound, sleep, wifi, display, a 75 sec or less boot time (faster than a mb air) it won't boot... Stuck an the grey apple screen. I've given up on saving my 200gb and went to do over, now the dellmini boot I used is saying disk error. Does anyone really know about command lines and such in boot -s, -v , -f to explain what's going on to me?
Btw the last thing I did was change the finder icon, reboot, worked fine, to save my work I did a timemachine back up. It said it had an hr (@1am), so I scheduled a shut down for 3am since I didn't want it to make hourly back ups all night.