I purchased the Lapdock 500 Pro via Telesales and received it today. Kinda blind on compatibility with my Bionic since they just became available and the stores didn't have them yet to try out. But I could have always returned it...
Basically...the the Bionic will work with the Lapdock 500 just like it will with the Lapdock 100. I did discover though that what Motorola says on their page is correct...the newer features on the 500 (webcam, vga out, ethernet connection, sd card function) do not at this time. Supposedly an update in the future will allow same with the Bionic. I personally checked the webcam and vga out...didnt check the ethernet connection or sd card ...but all seemed to be in line with Motos statements.
This is fine with me:
1) I rarely if ever use a webcam
2) can wait for ethernet (have 4g and unlimited data) and vga out.
The 500 is a big improvement over the Bionic Lapdock and the 100. Bigger screen, full size keyboard, etc.
Like the 100 it will be compatible with future Moto phones with webtop....so this again makes the wait for an update ok for me.
So...if you thought about buying a 100 to use with your Bionic, go ahead and get the 500...same functions (for now) and bigger and better.
Bought mine at 249.99 from Verizon Telesales (had a LivingSocial coupon so had to use Telesales). They matched the Verizon online price. Lapdock 500 currently $249 at Verizon Online...Lapdock 100 and Bionic Lapdock at $199 (only $50 dollars difference!!).
One interesting note...as others have mentioned in regards to the 100. Netflix will show upside down if phone is in the dock or rotated...not sure if this is the lapdock, phone, or the app...screen will play upright on the phone no matter how rotated undocked. Other apps display fine (NFL Network, etc). Might cause a slight inconvenience if trying to work off of your lap and have to have the phone out of the holding tray.
Hope this helps some decide.