It seems Mark is contributing to the new album by Tuatara, the side project of Pete Buck from REM and Scott McCaughey (when they are not being the Minus 5/3). It seems they put together a bunch of tunes and sent them out to their favourite singer/songwriters, Mark included, to write and sing on.
"East Of The Sun" is due out in June 2007 and there is talk of taking the band and the singers hitting the road. We will have to wait and see whether they come to the UK.
This is also mentioned in the April issue of Uncut on page 24.