1. At Mandriva we already had different ISOs for 32- and 64-bit, which we should do as well. So this question about the arch during installation is obsolete.
2. A difference between desktop/laptop/mobile should be on "task" level like the meta-task scripts we had at Mandriva. I don't think there should be a real special distribution for any purpose. There are special Mandriva editions für netbooks (meego), for machines with poor ressources (LXDE Edition), etc. Such special editions used to be created by groups inside the community, we can do it likewise. So, my vote goes to the "one Mageia edition" solution with room for any other special enhancements to be created by community groups like the XFCE group, the LXDE group (MUD), the Meego group, etc. At least for the start. If we have the ressources and if there is a demand for such special editions we can see to that later after the main distribution is rolling. BTW: "Mobile Linux" for mobile phones is Android and I don't think anyone could beat that on the market. We should not bother with that.
