Having read around the topic I blogged about yesterday I thought it might be a good idea to furnish you with some resources to look further into the impact of Fast search on the next version of SharePoint. Erica Toelle has speculated on the possible direction of the new development through twitter. She thinks that the next SharePoint search engine will still be based on SharePoint search with FAST on top. If this is the case then FAST will be probably be the base in 15. You can find Erica on twitter here.
If you want to get up to speed with FAST and the impact on MOSS then take a look at this presentation here from last years PDC. Finally Alexander Meijers has written a couple of great blog posts on the topic. His blog in response to the presentation above is here. He has also blogged after the announcement last week and this is really useful. If you want his concise view on the differences between Microsoft Search Server and Microsoft Fast ESP take a look here. Happy reading.