T-Mobile hearts Yahoo! Nokia hearts Google

The Mobile World Congress is proving racier than a Dallas double-bill – major movers and shakers have been swapping partners and hopping into be

The Mobile World Congress is proving racier than a Dallas double-bill – major movers and shakers have been swapping partners and hopping into bed with one another faster than you can say "search-related mobile partnership".

First up, Nokia has announced it's officially going steady with Google, which means that handsets will have a search app imaginatively named 'Nokia Search'. It's going to be a spicy union, as Google's newly-announced mobile platform, Android, will be in direct competition with Nokia's Symbian. Ooh!

Meanwhile, T-Mobile has ditched Google as a partner and announced that Yahoo! is now its NBF – and its mobile search service of choice in Europe.

This will see Web n Walk users being greeted with the tartrazine face of Yahoo! rather than the minimalist white of Google.

It's a welcome boon for Yahoo!, which hasn't had a great year so far – job losses in January were followed by a takeover bid by Microsoft.

T-Mobile users should expect improvements to their internet browsing such as tabbed web pages, as well as Yahoo!-owned apps such as Flickr, Messenger and Mail.

Check back tomorrow for revelations of Motorola's affair with Ask (don't worry – it all turns out to be a dream sequence)...