I've done a lot of work on the Muribot, it started off as a project I finished back in August 2011 as MINI Mouse, if you'd like to learn more about the origins and progress of this project over the years, these are great to read (as long as you can handle my writing style)

9/2011 - Introduction and Muribot's Predecessor, MINI Mouse
9/2011 - Initial Kickstarter and MINI Mouse v2 design
10/2013 - MINIMouse becomes Muribot
10/2013 - Muribot Alpha vs The Competition
2/2014 – Alpha PCBs sent out
2/2014 – Alpha PCB Gerber Viewer Screenshot
3/2014 – 3D Printed Bracket Version A
6/2014 – Website Launched
6/2014 – First pricing and failing kickstarters
6/2014 – 3D Printed Case, Backer Rewards 1.0, International Shipping, 3D Printing vs Injection Molding, PCB Production, Component Sourcing, Assembly, and Reward Delivery
7/2014 – Beta Assembled, Magnetometer Added, and Muribot API starts taking shape
8/2014 – Beta Bugs :(
8/2014 – Bug Fixes :)
9/2014 – Bug Fix Details, Hardware PWM implemented, and some notes on Battery Life
9/2014 – DEMO VIDEO (Very bad, I'm sorry!)
10/2014 – A02 PCBs Picture
1/2014 – Free Upgrades and Oversampling
2/2015 – First look at the production version
2/2015 – Production Case Picture
3/2015 – Backer Rewards Finalized
3/2015 – Encoder Firmware and PC software on github!
3/2015 – Discovering the From1+