Blu-Ray is best used as a media format rather than a gaming one, at least whilst the drive is so slow (2x speed).
Free online is correct, however it lacks a lot of things that make the Xbox Live service so great. Whilst it's a mile better than Wii's online service, it's lacking compared to Xbox Live. I know a lot of users here have commented that they'd rather pay for Live than get PSN for free, personally I'd be willing to pay for both

as long as Sony improve their service.
So no, they aren't really future proof as the life cycle won't be any larger than that of the Wii or Xbox360. Nothing is future proof, and certainly not games consoles.