Essentially, this kills the trite "but PSN is free" arguement.
Owning both a 360 and PS3, this is a bad idea... The marketplace for the PS3 is just, well, bad. Call me a troll, call me a fanboy, I dont care. Its poorly designed, I dont like the layout, I dont like that they cant get multiplatform content first (ex. GTA4, MW2). I just don't like it at all. Why pay $50 a month for a service I dont like to run a service that I can use for free on my laptop? (not to mention I can connect my laptop to my TV...)
If your gonna make a PlayStation Plus update, make the marketplace worth the money. I know a lot of people who have both consoles, and for people like us its gonna be "PSN+ vs XBL", and were only gonna pay for one. Get content, get fancy widgets. XBL made me want to sink money into it; I liked the games far more when both marketplaces were vanilla (and I had the peer pressure to justify it too). Now that good games on both leveled out, The Netflix Update sunk me in. It let me use a service I already had a lot better. If your going to CHARGE us, make it worth our money.