I dont know what you all think, but I think a backup every hour is to much wasted space. I find myself turning TM off for extended periods of time, then turning back on do it can do its thing, then shutting off again, so I dont have it backing up the same stuff over and over. Last night I forgot to turn it off when I went to bed and I wake up and find that its used another 1gb of space. For what?? To just keep making the same backup over and over and over?? Thats stupid. Id like the ability to adjust the timeframe to at least once every 24hrs. A slider from 1hr to 24hrs would be ideal in my mind.