We've been trawling Barcelona for apps and startups during Mobile World Congress, so here's a little round-up of some of those that have been plying their wares - many of whom don't have the cash to exhibit at the official Congress, but who are pitching like mad in the hotel bars of Barcelona.BearCare from Tagofjoy is an Augmented Reality game with a freemium business model. In the game you have to protect your beloved helpless Teddy Bear and cuddle him to keep him happy (go with it, it gets better). The fun part is that it takes place in a real environment, which is blended with lively and playful 3D bears. The games ha two modes. One is a fast-paced action game, in which you have to protect your helpless bear from unearthly, evil toy bears. Another mode lets you take care of him and keep him happy by cuddling him, playing with him and feeding him when he gets hungry. It's a Tamagotchi basically, but re-done for a new world.PlayTales is a an interesting virtual store and publishing platform. It publishes interactive children’s ebooks in 7 languages on Android, iPad, iPhone, Windows Phone and soon a flash web site. It's basically a dream come true for parents who want to read stories to their kids on an iPad.Mafuta Go! is a one from left field for you. Coming out of Uganda, this is an app that lets users find the nearest gas station with the cheapest prices. Should you need that.It's worth also pointing out that Swiftkey, which we've covered before, won the official GMA award for most innovative app, beating Google Wallet. Here's a few others: read more..