There are a view threads concerning getting megajolt to work with a Phone or a tablet. Has anyone actually got this working or has anything officially been produced?

I did, but I had to buy a Windows tablet that runs a full version of Windows so I could use the standard configurator program. I got the Linx10 then constructed a Bluetooth module to plug into to my 9 pin com port (V3). hardware mods required to the board though for power and comms avoiding the RS232 chip:

https://www.autosportlabs.org/viewtopic.php?t=3132&start=90

Page 7 is where I got it all running and photos to show how I did it.