Earlier today, from GDC '09 a PS3 Firmware 2.70 announcement by Sony was rumored.
While we don't have an official word yet, PS3 Firmware 2.70 was confirmed present by many (props to ssneeky10 for the link) including some of the resident PS3 Devs, albeit briefly, on Sony's servers before being removed.
Chances are either a last-minute issue with it was found, or it was mistakenly put it up for download and removed, similar to what happened for Life with PlayStation.
To quote: Just got this from a prominent PS3 developer at GDC: "PS3 Firmware 2.70 definitely this week. Developers got it yesterday."
The update was rumored to have gone live this afternoon, but was apparently withdrawn. Watch for an announcement in the next few days.
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