It's becoming quite a popular swap, There are some ecu's that can control them, and there are also now some standalone controllers you can interface with most aftermarket ecu's too.

Interestingly, the ones I've hard of both originate from Sweden. I know there's another crowd in France with a DSG option for the VW boxes. The Swedish one is intended for all types of auto and DCT, although whether they've actually fully functional units tested in all matters, is very early days yet

But the DCT boxes seem to be very good, very strong, and they will become more readily available. Lots of positives really, and very tempted myself.

Another cool company in the UK offering the same sort of thing, more aimed at the mid engined race car stuff, like Ultimas etc. Is Auto Bionics. They do some cool shit, and post some on Facebook. Probably pricey though