After installing tweetdeck on my phone I let it run for about a day and a half. However after that short time I noticed my battery was suffering quite badly. So I took a look around my stats and also noticed that in that short time the program had used no less than 74mb of data!!! I rang my colleague who also installed it and he found it had used 100mb. And a fair bit of battery. He has a nexus one I have a milestone. We went sniffing around their forums and found a few other users complaining of the same issue. So we've uninstalled for now. We've posted something up on their forum but as of yet no reply. Needless to say that sort of data usage is unacceptable. Especially when alot of carriers are getting rid of unlimited plans.