Yep! No need to run the toolbox if you OS is TRIM aware and you are using the right drivers.
Really glad to see it - I am still stuck with Windows XP and it really helped.
IMHO for SSD where space is at premium WindowsXP is not a bad choice to be honest...
Consider win7. Its footprint is very small. Mine is 20GB with pagefile and 5GB worth of programs installed + XP mode (though, I never used it until now). Not to mention its superiority over XP in virtually every way.
Yeah Win7 is my next step indeed.
The way I partitioned my 160GB G2 is 40GB for OS X and the rest for Windows as NTFS is accessible by both systems and might benefit from TRIM straight away...
I will upgrade to Win 7 and Snow Leopard over Christmas hopefully.