It's my second week of owning the N800 and as much as l have grown to love it, I was a bit reluctant to try the bootmenu procedure because I haven't used Linux in so many years. After flashing the N800 with the latest OS that came out over the weekend, I finally spent some time last night to get it to boot from mmc. I used a Sandisk Ultra II 2GB card and followed the instructions. It took a while but it worked like a charm after the reboot. Now I have more than 1GB of free memory to use and it boots up fast! Faster than from flash as I remembered. The Sandisk Ultra II is not the fastest card around (I think around 60X or a bit more than that) and it's already giving me pretty impressive performance. I can imagine how it would be like using a 150X card.