I don't generally cover the Sinclair QL partly because I know precious little about it. But as mentioned by news-monger Yerzmyey, there's a new machine aiming to fill the gap left by it. The Q40 (and Q60) are motorola-based machines running three different OS's: QDOS, SMSQ/E, and Q60 Linux. They allow running of classic QL software along with new software that takes advantage of the machines features.
Checking the site, it reads a little like the QL's answer to the Sprinter. I guess this is a good thing if you're a QL-fan.