I have a working successfull Lion install in a 2 partition H/D. If I now install Windows in the other partition will I be able to boot with iBoot and then use Multibeast to repair the Lion boot ability?
I think Windows would have to be the first partition on the drive, but I'm not sure.
Bullsh*t, I had Windows 7 on the second partition of my SSD myself a while ago...
And yes, back then I had to reinstall chimera via iBoot to make everything work.
It's safer to use a separate HDD/SSD though (Spare yourself some headaches! ). If you do that, make sure to unplug your Lion HDD prior to the Windows install. When the install is done, you can reconnect the Lion drive and Chimera should automatically see both your Lion and Windows partitions.
As to the empty partition with which you are left then, just remove it using Disk Utility.