I, like many other nerds, have applied SP1 to many of my Win7 and Win 2008 R2 boxes since its proper release to the web (im not/wasnt ball-sy enough to use the leaked OEM versions)
First impressions of Hyper-V dynamic memory are quite good. I have, as expected, freed up a reasonable amount of memory on each of my hyper-V servers, enough so i could run another 5 or 6 virtuals per host – which is quite impressive.
I quite like the feedback you now get in the Hyper-V mmc – with assigned memory, memory demand and memory status…. although a minor thing – it will definately help improve densities and therefore reduce costs in the datacentre.