Android 4.0 upgrades for Sony Xperia mini and HTC Incredible S are underway. The HTC Incredible S Android 4.0 update has already started. According to the source, the Incredible S over-the-air update has been started from July 2 worldwide. HTC has released Android 4.0.4 and Sense UI 3.6 for the Incredible S.
Sony is also preparing to release its Android 4.0 update for Xperia mini. This update will not be an intuitive over-the-air like the HTC Incredible. At first, you must check the 8 digit Sales Item number (SI) under the battery of your Xperia mini, then you need to match your SI number from Sony website. If your phone does match with the list, you can use PC Companion for Windows or Bridge for Mac to load the update.