While Microsoft have seen fit to completely overhaul their console's front end, Sony say that they'll be nothing of the sort with the PS3. At least, not anytime soon.
Chatting with PCWorld, Sony's Eric Lempel has said:
What we find is that people really like our current interface. We did redesign the PlayStation Store last April to make some improvements, make it faster, make it better, and we're always listening to consumers. But right now the XMB [XrossMediaBar]is an Emmy Award-winning interface and people like it. They're very comfortable with it. So we're not looking to do anything radical. We'll still do some research behind the scenes and see what can we do to make things better, or how can we make it so consumers find content faster, but right now we're pretty happy with it. No plans right now to do anything like what the competitor has done.
Well, really, why would Sony be trying anything radical? Microsoft had to change the 360's original user interface because it was confusing, something that wasn't entirely rectified with the NXE. But the XMB? It was easy as pie to use, from day 1, and remains that way to this day.
Sony's Eric Lempel On PS3 Updates, Firmware Rumors [PCWorld, via Edge]