Of course I wouldn't complain if more and more clients popped up, but IMO what matters is that the ones we currently have remain well maintained over time, in the hands of people who know what they are doing, and that there is one such client per platform, which is effectively the case today.

If you have ideas on how to improve current clients, I'm sure people would take your remarks and contributions kindly (for instance, there's a zoo of pretty clients that forked from Conversations on Android, Dino tries to be a minimalistic client for the simple needs and is getting an official Windows build soon, etc)