reply to EGeezer
Re: Router security OK, that's what I thought. The router I have dealt with in this situation can support VLAN and also WPA2-Enterprise, but all those smartphones don't understand WPA2-Enterprise.
I wonder whether you can use WPA2-Enterprise mixed and it would work with the smartphones? I have not tested this. After some checking, I think this probably would not work, either. I also found some commentary about WPA2-Enterprise and Apple iOS5 having issues with connecting.
It is easier for a camel to put on a bikini than an old man to thread a needle.