Danny Sullivan notes at Search Engine Land that there are a number of Google search engine enhancements that we may start to see very soon. They include reviews seen within the SERPs, pagelinks (a term he coined), and better spell correction and are illustrated below.
The Search Engine Land post explains these in detail, but I'll give you the background.
The image below indicates that you can now see more information about business listings, including reviews:
The next feature you may see is something that Danny calls pagelinks. Like sitelinks, popular portions of a web page are appropriately linked. You need to actually have internal anchor text within the page though to get this "Jump to" pagelink feature.
The final that Danny writes about is how Google is now to handle auto spellcheck. Instead of just showing "did you mean XXXX?", you get results for the correct spelling *and* the misspelled query as seen below:
Looks pretty impressive. It'll be most important for SEMs to start looking at how to work with reviews, but I think that pagelinks would also be important here too.
Forum discussion continues at Sphinn.