???
WiMax is a even newer technology than 3G. The time for 3G hasn't come yet. I personally don't see any great potential for WiMax in the near future. It would be a technology for 4G wireless communication systems.
On the ther hand, I bought Wi-Lan a few years ago at CDN4.00 and sold at CDN4.10 after six month depression. The reason for the purchase at that time was for Wireless LAN technology (a few technologies with the commercial success).
Now, it is chasing WiMax. To me, it is like a joke. Be careful, the wireless market is really very competetive. Not too many can survive.