Here's my experiences with WF2, so far...
The Datum Sketch feature..
There is a new command next to the sketched datum curve command which allows you to create a "sketch" feature. This feature is just like a sketched datum curve, however it can be used directly as a reference for an extrusion or revolve, for example. Those of you who use Wildfire know that there is no "link" between a sketched datum curve and a sketched feature (although you can make them associative via a config option i believe). In WF2 There *is* a link between this new sketch feature and any feature created from it..
The omnipresent "undo" command..
Yes, you can undo almost any action in WF2! So go ahead.. delete that feature.. its just a Ctrl-Z away!
Copying of features...
I was really impressed by this. You can now literally click a feature (say, a hole), press Edit--> Copy, pick a new place to put it (say, a new surface) and press Edit--> Paste special to place a new one. There is an easy to use dialog that lets you choose new references or maintain old ones. You can also apply transformations from the Paste-Special command as well.
Patterning..
Aside from the fill pattern (from Wilfdire), WF2 pretty lets you pattern any features in any direction. This means you don't need to create a "make datum" to pattern a rib around a boss, for example. You would simply pattern it around an axis.
Annotation Features...
WF2 lets you make 3-Dimensional Annotations which conform to the ASME Y14.41 standard for Digital Product Data. So a model can contain dimensions which remain on a specific plane and rotate with the model. This is a new standard and we are in the process of investigating it. I do, however, like the idea of it so far.
Sheetmetal...
WOW. You have to see this to believe it. If you are using Pro/Sheetmetal 2001, you will kiss your screen when you see WF2. The process of creating walls has become so simple, its literally a matter of clicking an edge to attach and choosing the flat wall command. The dynamic drag allows you to alter the angle, and the dashboard allows you to control the shape. We created a sheetmetal part in less than 1/4 of the time it used to take us using this new functional area.
Analyis tools
There has been a serious consolidation of the tools used to analyze models. I'm toying with that right now so I cant really list all the changes, but I can tell you that it is a major step from both 2001 and WF.
Parameters & relations
The improved relations editor in WF was improved upon in WF2. You now have buttons that let you enter in mathematical symbols (i know it doesn't sound like much, but it does make things easier), and you can specify UNITS to parameters. So now very simple relations can be used to perform unit conversions during regen.
So far, that's all the info I can come up with.. I'm sure there's more to be discovered, but I guess more people need to start moving towards this release before we start using it more.
-Mark