I was told by a Verizon rep late May early June for us but just here say. Looking forward to getting a Q10 myself.
I have the Z10 and love it but I miss the buttons. I'm thinking I need the Q10 more.
Amazon.co.uk are now listing the Q10 for pre-order for release on the 29th of April!!!
They also have a picture of the Q10 next to their listing for the Z10, DUH!