I was on the phone with Tech spport yesterday requesting a replacement Storm (which arrived today!) and I asked if he had any clue when the next release might be coming.
He said as we were speaking the guys from RIM were in the office meeting with Engineers going over the details of the release candidate, making sure they had everything in there. He hadn't heard anything specific, but he said last time those guys were in on a Tuesday, the release came out Friday, so he was hoping for next week at the latest.
Just a rumor