is their any point buying imac in nov/dec .. with haswell coming out in spring 2013
Intel will first be shipping mobile processors, so the first models to go Haswell will be the MacBook Air (as they will benefit the most from the better battery life and better IGP). Next will probably be the MacBook Pros with Retina Display and, assuming Apple doesn't kill them off, MacBook Pros without Retina Display.
The above will likely be announced at the WWDC keynote.
iMacs use desktop CPUs and those won't be out until summer. As such, I don't expect them launching until this time next year.
As to what I think about the new iMac, I'm a bit torn. I like the CPU and GPU power of the iMac, but not sure I really need it (I certainly don't find myself cursing the performance of my MacBook Air).
I understand "thin is in" and I can live with moving to an external ODD. I am unsure, however, about being effectively forced to going to a Fusion Drive as it sounds like the only pure-SSD option will be 768GB and that is both way more than I need (I find 256GB to be fine) and it will likely add $1000 to the price of the iMac.
My mid-2011 iMac has a factory SSD and I keep my apps and documents on it, with photos, music and movies on an external 4TB HDD because a music track or movie won't play any faster off an SSD than an HDD.
So I'm a bit worried about Fusion moving media to the SSD and moving applications to the HDD based on my use patterns, which means that when I do want to fire up one of those applications, it will be "dog slow". I'll be watching the benchmarks with great interest.
I won't be buying a new Mac until the Haswell MacBook Air ships as I am thinking that any my ATD will be a fully-functional replacement for my mid-2011 iMac and it would be nice to just have one machine to worry about.