Hi Jack,
It depends whether you need to use the features that "bleeding edge" gives you against the pain of shaking the bugs out.
For now, assume that there will be an upgrade choice but decide whether what's in 6.01 fits your needs. It will be supported for quite some time to come for security issues etc..(look at how many 5.6 machines are still supported).
Most long term SME users I've spoken to are happy to keep rolling out 6.01 (or 6.0!).
Damian