Building around the latest update to its Yahoo! oneSearch mobile app, the company is working on a full-on assault on smartphones. The recently-announced Yahoo! Mobile project combines the app with access to your Yahoo! account, Yahoo! News, widget support, mapping, and Opera Mini. Versions of the software suite will be available for iPhones, Windows Mobile devices, Symbian phones, and BlackBerrys, with a web-based version of the package accessable from any phone running a WebKit-based browser.

Like we told you about when the upgrade first launched, the latest oneSearch lets you directly access Yahoo! search information from your phone. This new version lets you enter in your search query just by speaking it aloud, and lets supported phones locate their positions without using GPS, giving you targeted search results, though you'll need one of the smartphone versions of Mobile to use those high-end features.

Yahoo! oneConnect ties you in to features associated with your Yahoo! account. This is one of the Mobile services you'll be able to access from a standard web browser. It pulls together email, contact information, instant messaging, and calendar scheduling. Yahoo! News should work just like it does from your computer, and Yahoo! onePlace offers what looks like a scaled-down search, connecting you with headlines, sports scores, horoscopes, weather information, and the like.

Besides all that web content, supported smartphones will gain additional access to map software, as Yahoo! looks to reclaim some share of the route-planning game. The company will bundle in an Opera Mini browser, using it to pull up search results and quickly display them. The Mobile software will auto-load the browser as it's needed and then return to the main software package, which could be a work-around for devices like the iPhone, lacking multitasking support. Lastly, users of one of the smartphones will be able to add custom widgets to refine the interface and move around how data is presented.

The web-only features of Yahoo! Mobile should be up and running by March, followed shortly by the iPhone version of the software. The rest of the smartphone support should be available by the end of May. If you want to try getting in on an early beta, you can sign up at mobile.yahoo.com.

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