I've had my droid for a month now. Its great. However after getting a bunch of apps from the android market i am getting a warning saying my internal memory card is getting full.when I check under settings, i still have about 20mb left. At what size do i start getting this warning? Its it possible to save apps onto the sd card instead of the internal memory? Also is there a size limit for the number of text messages, i starting getting warning messages for those as well.