Parallels does seem to fall over with alarming regularity. More than any extra features I'd just like to see stability improve. Running Windows Server 2003 it seems to fall over almost every session. Sleeping my MacBook while Windows is running seems to make it more likely to fall over, but it doesn't appear to be a direct link.
Something which may shed a little light on what's going wrong here... I increased the amount of memory allocated to the VM and stability has improved. I'd expect performance to improve, but I wouldn't expect that to affect parallels stability - but it seems it does.
