Does anyone know if Beast will have auto unwrapping and creation of second UV channel for lightmapping, or must it be done in another app?
Yes, we have auto-unwrap of the second UV in Unity 3. You can also use your own created in your 3d app if you prefer.
Yes! Thanks. 
Is there some info somewhere how the Beast workflow works? I’ve found very little while searching.
Well, our workflow between Beast and Unity is of course unique so searching for stuff on the web right now isn’t going to yield any useful results 
However, we’re releasing a Unity 3 feature preview video this week about the new lightmapping features that should definitely shed some light on how the new lightmapping workflow will be in Unity 3.
It sounds really astounding… can’t wait.
lol, shed some light on light mapping.
But, I am really excited about beast (and everything Unity)
Now I need to earn $3000 for Pro + iPhone Pro
Can you save out the lightmap and edit it?
Yes.
The lightmap sare just added to your project as per other textures you add, so you can open them up in a graphics package (so long as it supports EXR formats) and edit it like any other texture.
I cant say it enough… the Beast implementation in Unity rocks! Very easy to use, very powerful under the hood and produces amazing results!
I’m looking forward to seeing how fast it calculates the lighting against the quality. I spent 4 hours yesterday in modo just baking 1 lightmap!