When it comes to forecasting the next big thing, we turn to our secret weapon: the TUAW braintrust. We put the question to you and let you have your go at it. Today's topic is data buckets. Data buckets refer to the bandwidth allocation you can purchase monthly on the iPad. For example, AT&T's smallest bucket is 250 MB at $15/month, then jumping up to 2GB at $25/month. Verizon offers 1GB at $20/month and 3GB at $35.