- right- and left-handed search navigation
- keyboard shortcuts for search results
- keyword suggestions
- alternate views for search results
I don't particularly care about keyboard shortcuts and search results. This is a personal inconsistency however as I don't use keyboard shortcuts in Gmail either but almost always use the keyboard to navigate between applications, tabs and the OS in general. Maybe this is my unverbalized position that I just don't like the way Google implemented keyboard shortcuts. Maybe I'm just inconsistent after all.
The keyword suggestions have been available as a Google Labs offering called Google Suggest for a while and the search bar in Firefox provides JSON-enabled search term suggestions.
The alternative search results are a great move forward with regard to search result presentation, specifically addressing the need for better contextual-based and grouped/ordered search results. I've written about this previously and was eager for new search primitives to address this perceived shortcoming or at minimum search options that accomplished the same thing.
At least I'm not alone in liking the latest search presentation options. Ars Technica described it simply as "awesome".