We're not sure if it still counts as Arcade Wednesdays but the latest arcade classic reborn for MS's Xbox Live service will be Defender, which is due to hyperspace onto the service today.
Appearing in both demo and full fat form, Defender will set you back some 400 MS points or around 3.4 of our great British quids.
However, don't expect it at the traditional 8am launch time as according to Major Nelson's blog, it's coming hot out of the certification process, so launch window is unconfirmed although the team are apparently pulling out all the stops to bring it to you today.
We're not even too sure whether it'll be the ancient classic faithfully recreated or multiple versions possibly including Defender II which have been brought up to date and enhanced for the HD era.