[Atrix 4G Q&A, Help & Troubleshooting] tobnddl:
1a) Any roms recommended for 50% lapdock use? I intend to use the lapdock in classes for a lot of notes and papers (got 2 english class). I saw something about Jokersax's CM9 with tablet tweak or something. Is this good?

I use my lapdock daily, and rely on it as a "laptop" for my job. I have been consistently disappointed by the general speed of the phone when it is in the actual lapdock mode, but it is passable. For "official" lapdock use, I would recommend the Nottachtrix ROM with the 2.3.6 webtop build. This will give you the greatest sense of what it is "meant" to be. From there you can experiment with Webtop2SD, and begin to explore putting full linux builds on the lapdock. It really is a kick to use OpenOffice on the lapdock, but the experience is not as good as a traditional laptop. All of these actions require that you be on a Gingerbread ROM.

Now...if you want to experiment with other ROMs, there are meaningful Webtop alternatives. HDMI mirroring is a feature in CM7 and CM9 ROMs. Not sure about JB. Essentially, this is piping your phone screen onto the lapdock. It tends to be faster, but does not stray beyond anything already available on your phone. Tablet tweaks make this even easier by keeping your screen on and moving your notification bar to the bottom, and I would recommend the Free App "Button Savior" to put soft keys as clickable elements on your screen. I am using this alternative right now with a variety of 7.2 ROMS, and am happy with it. For class notes, I think you would be happy with this as well, and you will not have to worry about running afoul of tethering rules, since this is just "using your phone on the big screen".

1b) If I use webtop enabled rom, have the webtop part been edited to avoid notifying AT&T about the lapdock usage so I won't be charged with that stupid tethering charges?

I do not have a good conclusion for you on this, but I will say that I have used the official lapdock app a considerable amount, drawing data regularly for documents and streaming, and I have received no notice. I would not say that my volumes would make me hit any radars though either. Search the forums for using a script to disable the firewall if you are interested. It is simple, and gives seamless functionality.

2) any recommended note apps? Bonus point for dropbox integration or google document integration (Is the google drive app able to edit documents? if so, I'll just stay with that)

My daily driver is OfficeSuite pro. Good support for most common formats, fast, and complete. I use it in conjunction with the DropBox app, but in reality, I think that the DropBox app would work with any number of solutions.

4) Do you have any general tips for general lapdock usage? I am aware of the touchpad being rather lousy so I intend to use my laptop mouse.

The lapdock is a neat solution, but in my mind, not a true replacement for a laptop computer. It is novel, and can be very functional, but to me the lack of speed, and lack of true stability makes this a less than adequate solution. I am interested to see what Motorola does with the ICS release, since they seem to have indicated a move toward tablet functionality rather than a crippled Linux build.

Good luck to you!