i know..i am facing the same problem using that 900+ unlimited plan..

..its unlimited in data transfer and usage..no doubt in that,but we have to compromise on the speed!!!i have confirmed about this problem from other people in my locality too who are using this plan and they are also facing the same problem..so i don't think its worth upgrading to the 900+UL plan if someone is using 250 plan already as i had experienced speed fluctuations with 250 plan and sometimes the speed was like 50 kbps..its alright that it was at some occasions only..but it was a better deal than 900 + plan where even after 0% data compression i am getting a compromised speed of never >40kbps..
