I don't know if they have 150MHz with 4CH
A 4CH obviously not, at least not yet officially, only the 2CH TO1152. I asked Micsig last week about a possible "TO1154" in the near future, but got no answer on this topic. My other question, whether a 100MHz 4CH TO1104 can be upgraded to 150MHz later on, was answered with "TO1104 can not be updated to TO1154 - sorry". So let's see what happens. I somehow like this small tablet because of its portability and would possibly give it a try, if a 150MHz 4CH version is in the works and not too far away.