Soltek told me this week that their SL-K890Pro-939 would be available in 1 or 2 weeks. 10 days ago they didn't have a date because they couldn't get the chipset from VIA, so it seems that VIA wasn't lying when they said they finally resolved their supply issues.
AMD will have PCI-E support in many flavors. The ATI solution is being paired with a much better southbridge solution, giving it lots of muscle to compete. This is a good thing as it will keep prices down for the end user.