I'm getting the N1 in a week; and after lots of reading it seems Cyanogen's ROM is the way to go, even improving stock performance. Before committing myself to any modding however, I want to understand certain things. What exactly is a recovery image for? I understand the concepts of rooting and using a new ROM, but I am not quite sure where the recovery image sits in all this. Is it similar to a boosted version of the Windows boot-screen options?