I'd like to suggest a trending pages and answers sections which could update real-time. First place I'd come after seeing a "live event" on twitter is Mahalo for a detailed page, links, etc.
Great update to a great service.
I am really impress and happy of the process that you have been doing sharing all the Mahalo upgrade process. congrats!!!!
#2 makes more sense, offers more space for the "what's going on" dashboard-like area, but still presents the search box prominently enough for when it's needed.
Another thing that I've noticed on the first design is that you got pictures right on the edge of my fold here, that also makes ok to have less content on the top, because it indicates that there are more after the fold, and the user can notice it right away.
Personally I like #1 since it emphasizes both search and asking a question.
I am curious why the 'user interaction' (human powered search, mahalo $$, page managing, etc) is now non-apparent on the front page unlike before.
I don't think you'll get many search hits in your answers box (testing of course is far more valuable than my dopey opinion), but a white background, rounded corners (and/or the little magnifying icon) on the search box would go a long way to make "search" more noticeable. Look at upper right in Firefox, Safari or the Mac for clues to borrow from.
As a designer, reading between the lines I'd also note that both options hint that Mahalo doesn't quite know what it is yet. The company process itself that generated these two options should be rethought and debugged.