There have been some discussions on various forums concerning a recent web posting showing "NXT 2.0" - the rumors have started flying and some new NXT buyers are concerned that their recent purchase should have been held off...
First, it is NXT-G 2.0, not NXT 2.0. I was recently given a look at the new software and told that LEGO Education will be making it available for purchase in Nov 2008. It has built-in datalogging features, including graphs and the ability to export your data to spreadsheet applications and text files. It offers color options for the variables that are monitored, too... there's a new NXT-G block made specfically for it and the new projects are built into Robot Educator (along the right edge of the software).
That's about all I have... it is NOT an upgrade to your existing software, but is a completely new product and I have no information on pricing or licensing. If anyone is out there telling you that the MCP are sitting on NXT 2.0, please inform them that MCP 3.0 hasn't even been tasked yet with any jobs.
And if you've just purchased an NXT (retail or education version), relax... your kit isn't being phased out.