Sony received a lot of flak for their Xperia X10 Android devices - with a poor Android release upgrade cycle (very slow updates and stopping updates after Android 2.1), unfriendly attitude to devs, etc. But they've done a complete 180 recently; they reversed the decision of the Xperia X10 phones only getting Android 2.1 and said they'd release Gingerbread on them, as well as unveil the bootloader/unlocking website.
Side Note: I'm currently testing the Xperia PLAY out as a sort-of competition for SE, and the UI is very smooth and responsive. I only used it a few times, but I heard the Xperia X10 (+Mini and Pro) had quite laggy UI, the PLAY and also presumably the Arc are a different story. These are phones that I would recommend to friends now (currently suggest they only purchase HTC handsets and will advise against Motorola / Lagblur). So I just wanted to put it out there that they're changing gears and learning from their mistakes, and they deserve a pat on the back for it.