What I liked the most was that iBus works perfectly with a Spanish locale and the Japanese IMe anthy. So, I guess the poor performance of iBus that I I reported here has to do with the Live install. Hey, I even checked that the packages needed were on place in the Live install but, even when they were there, iBus would not obey.
|iBus package installation, Mageia 3 x86-64 DVD (on VM)|
I suspect that Mageia 3 will be a real pleasure to use.
Kudos to the developers!