One look at Yahoo! Go’s oneSearch and you’ll see the application was clearly designed for the mobile screen. oneSearch results are delivered to you in a new, breakthrough format that redefines search for the mobile phone. It’s all about getting instant answers with just one click—no need to sift through a bunch of links like on the PC.

Yahoo has been getting good press of late (often at Google’s expense) for its wide release of oneSearch, a mix of structured and unstructured data in search results intended to deliver “answers” rather than links. Last night Yahoo made several more mobile announcements.

Google, appearing to respond to oneSearch and other competitive challenges, has upgraded its WAP-based search to incorporate more data and information into results. There also appear to be some interesting personalization features. Here’s the Google Blog describing the changes. You can test it out online here.