You can't. Period. Nitdroid is HEAVILY dependant on Maemo, HEAVILY. So as a summary: No Maemo=No Nitdroid
so far as i know calls and sms are still on the works.. but data connection works great as i observed there is a slight improvement on battery for this release.. depending on how you manage using it, i think it wont go to the extent of being unuseable.. i wouldnt dump maemo for now afterall this is still on development.. im just enjoying to dual boot anytime i want.. for tutorials just follow the threads imsure youll manage