If you were banned from Xbox live for using a modified 360 (tut tut) there may well be hope for you yet.
According to users on Bungie.net, NeoGAF and Xbox-Scene, modified Xbox 360 consoles – which Microsoft started banning in November 2009 – were un-banned for most of yesterday. They are now barred once more however.
Some users attribute the reprieve to emergency testing following the recent issues with the PSN.
There’s been no official comment from Microsoft, but the Xbox Live Status page notes that maintenance work is being performed on matchmaking services to stamp out phishing attacks occuring within Modern Warfare 2.