As this article says;
http://www.tested.com/news/which-and...h-update/3063/

"The next thing to consider is hardware specs. This is actually less important than you would expect. Almost all but the low-end phones will be able, technically, to run Ice Cream Sandwich. A Snapdragon S1 or OMAP3 has the horsepower, and 512MB of RAM has been standard for some time. The sticking point for hardware is in the storage department."

Our only problem is the RAM but we have seen that Android is very scalable even with 256mb RAM so, we have the hardware requirements because we have a OMAP3430 board

EDIT: compiling right nao but I already think that adb sync will broke my nitdroid xD