At the end of this week the new twinplex XT will be available. This cooler is based on the bottom of the twinplex pro and offers a slightly better performance due an optimized waterflow. The flow resistance is almost the same.
If you already own a twinplex pro you will be able to get a conversion kit for around 15 Euro.
The twinplex XT will cost around 45 Euro.
The pictures below show a brazen block which hasn't be chromed yet; that's the reason why the plexiglass seems to be a bit darker but you can be sure the final version will look like the cuplex XT.
btw: the aquagrafx blocks 7800GS, 7600GT and 7950GX2 will be also available this week.