Lorenzo - You still shopping for a new platform? You just listed the best two out right now (are you using TT feed with NT.....I am and I have had no problems).
I think thats it. Strategy runner might have it when its hooked up to the TT fixed adapter which is in beta right now.
Yes you can only use XTrader for Eurex trading right now.....that is the only safe way. I can feel for your frustration.....not being able to use NT for the Eurex is a pain (use it with any confidence that is).
If by static you mean the price ladder doesn't move but the BB/BA prices move along the ladder, then Transact's platform is static.
T4 is somewhat static. I posted some info and a screen shot here: http://www.elitetrader.com/vb/showthread.php?s=&threadid=74090