As we saw a while back, XDA member Punk.Kaos, released a script for dual booting two ROM’s on the Droid Eris. Now, we see a cool project coming out of Team ADX. They recently released a ROM that installs a 2.1 ROM and then installs 2.2 ROM on your SD card.
The 2.1 based rom is a Sense ROM and the 2.2 ROM is an AOSP/CM mix. The only requirements are a partitioned SD card, which the thread has detailed instructions for. All it takes to switch between the ROM’s is a script, which you run using gcripts. No need to go into the recovery everytime you want to switch.
We encourage you Eris users to go try it out and report back in the discussion thread with any issues you’re having or if you want to thank the developers who worked hard on this.___________________