NEW Sigma 17-70 f2.8

Has anyone seen this new lens for sale anywhere? and at what price? NOT the f2.8-4. It's a new one Sigma are advertising but I can only find ads and prices for the f2.8-4
As my 24-60 f2.8 was replaced by the 24-70 f2.8 I thought this new 17-70 f2.8 could be a good replacement for my 24-60 IF IT'S NOT TOO EXPENSIVE??????
CHEERS Vic.

Isn't the new one an F2.8-F4 as well?

I picked up the 24-70 f2.8, so I've deleted my previous post.

A 17-70 f2.8 does not seem to be listed on the Sigmaphoto.com web site link

Here it is

http://www.sigmaphoto.com/product/17-70mm-f28-4-dc-macro-os-hsm-c

Sorry folks I read it wrong. It's the 17-70 f2.8-4. Maybe it was wishfull thinking that made me miss the 4. My blinkered eyes only saw the f2.8 and thought WOW I want one of them.
Thanks for the replies.
CHEERS Vic.