The head Android developer at Sony Ericsson, Simon Walker, recently made an interesting statement about rooting, via Twitter. He indicated that he is "in favor of it if we do it right." Perhaps this could be the seed of change at Sony Ericsson which leads to easier rooting and custom ROM development. Maybe it could even spark interest for other companies to follow suit. Motorola seems to be flip-flopping on the issue already, as indicated by their recent announcement of the Xoom coming with an unlocked/relockable bootloader. It would be amazing if this turned out to be a start of an industry trend.
Source: Android.net via AndroidCentral