The premium accounts thing is going to be great, that is if you want sony to expand its offerings, bring out some cool new things.
Right now, the PSN is probably losing $$$$$$ or gaining a small amount, b/c it offers all of its online stuff for free, except the DLC stuff.
If Sony can fill up this hole, it would be a lot more willing to ADD more stuff to the PSN in terms of content. We could be seeing the PSN being better and having more content by mid 2011 when MS concentrates on natal like the un-strategic company that they are....