Yes! And I'm glad to hear (well sort of) that its not just mine.
Mine's dropping the 1EX data connection several times a day/hour, lagging in sync to email accounts, weaker then normal signal etc. Reminds me of my old ATT phone...
Seems to happen right after the BB goes through a periodic 'reconfiguration', which makes me believe they're messing with the network
I was almost going to go get a new one this weekend. (Probably wait for Feb 4th release of iPhone tho)
Hopefully this isn't an indication of things to come as they prepare for the iPhone coming online

but I can't help but think it is related...
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Former Test driver & Production Manager Singer Vehicle Design
2009 Cayenne GTS, '81 911SC RoW Targa (lot's of goodies), '86 535csi, '84 633 csi (turbo charged-sold)

, '68 912 Targa (sold)

, '69 911E (sold)
"Dream it, Believe it, Decide it, DO it "