I was just browsing through the archives of this blog and saw a post mentioning Aperture Ireland. I realised I'd never actually checked whether or not Valve had gone about porting Portal 2 to GNU/Linux. I fired up Steam and it seems that this port recently entered beta.
Had I known this earlier, Aperture Ireland 2.0 would probably be underway right now. However, at this late date, it seems unlikely that I will be able to release on this side of June, since I will be otherwise engaged for much of next week. I apologise for what may seem to have been an avoidable delay.
On the plus side, Sony Pictures Television History Mark IV is almost done. I am half-way through documenting 2011 and the animation work should be all done by Easter Sunday. After that, putting it all together should be simple enough, so expect it to appear on Tuesday!