Beginning tomorrow, T-Mobile will be pushing out an update for their HTC Radar and HD7 phones. The update adds a boost in performance and will resolve an error that occurs when some users try to activate Visual Voicemail. While the Radar will also get the ability to download and customize ringtones, the real winner is the HD7, which will now connect to hidden WiFi networks and gain WiFi tethering. Some folks, however, claim that they were able to tether after the previous update.
The patch will start making its way out into the ether tomorrow and must be installed via the Zune software to a USB-connected handset.