i just saw this on xda. sounds pretty cool. i have not tried this yet. but you can have up to 4 roms running at once. its a paid app that is on the market.
[APP] Boot Manager 3.1.1 - Dual boot up to 4 additional ROMs from your SD card!
here is a great tutorial:
http://init2winitapps.com/stories/BMManual.html
What's in this version:
V3.1.1
Fix for various force closes in nand restores and rom install's
V3.1
User selectable colors for everything
Better navigation (press title for quick action)
Added compatability for new twrp backups
Now Compatible with memory tweak scripts(i.e. supercharger script and liquids default scripts)
Fix for install process being killed by android
Makes smaller boot.img(Option in settings to use old method with larger boot.img)
Improved gapps checker
See in app changelog for more details
[APP] Boot Manager 3.1.1 - Dual boot up to 4 additional ROMs from your SD card!
here is a great tutorial:
http://init2winitapps.com/stories/BMManual.html
What's in this version:
V3.1.1
Fix for various force closes in nand restores and rom install's
V3.1
User selectable colors for everything
Better navigation (press title for quick action)
Added compatability for new twrp backups
Now Compatible with memory tweak scripts(i.e. supercharger script and liquids default scripts)
Fix for install process being killed by android
Makes smaller boot.img(Option in settings to use old method with larger boot.img)
Improved gapps checker
See in app changelog for more details