UK carrier O2 has announced that it is pushing out the OTA Android 2.2 Froyo update to the Dell Streak today, as promised earlier this week. The wireless update will begin later on in the day, and be a staggered roll-out; there’s no public timescale from O2 as to how long the carrier expects before every device is updated.

Froyo will bring with it performance updates together with a new UI for the Streak.