Effective October 1st, Comcast is putting a cap on its unlimited usage plan -- instead of unlimited bandwidth, you get 250GB per month. It looks as if first-time offenders will only be given a warning, but then any subsequent violations could result in termination of your service. At first glance, that seems like quite a lot of bits; lets check it out. Comcast claims their average usage is 2 - 3 GB per month. From the Comcast Network Management Policy page, here's how you could use the 250 GBs. Send 50 million emails (at 0.05 KB/email) Download 62,500 songs (at 4 MB/song) Download 125 standard-definition movies (at 2 GB/movie) Upload 25,000 hi-resolution digital photos (at 10 MB/photo) What Comcast didn't publish was a realistic look at usage. For example, Comcast left a few items off such as IM, YouTube, podcasts, and 3rd party VoIP calls. With that being said, estimating usage for a family of 4 still only exceeds the Comcast estimate by 10x (20 - 30 GB p/ month). I did not c