I have created a thread in order to help people who want to create that same type of configuration using a Lapdock 100-500-Atrix/Bionic with a T428/MK908 stick.
The following cables are required :
for USB :
- Motorola Micro-USB Female to Mini-USB male
- Mini-USB female to USB male adapter
for HDMI :
- Micro-HDMI female to Micro-HDMI male extension cable
- Micro-HDMI female to HDMI female adapter
I use that same configuration on my ODroid U2 as well and it works perfectly.I have found the Lewy 2.0.3 ROM to work best on these setups.
Lapdocks can be found starting 35$ on Amazon refurb or ****.
Here are some photos of the setup :

Lapdock 100 on the left - Lapdock ATRIX on the right


T428 docks perfectly in the docking slot



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