If all you were expecting at Mobile World Congress this month was new mobile phones, you’ll be pleasantly surprised to find that software vendors should be there en masse as well. Take Azingo, for instance, who will make the trek to Barcelona in order to showcase two new WebKit-based products compatible with a litany of cellphones.If there’s one thing the mobile realm still needs, it’s better browsers. Aside from Apple’s iPhone and the T-Mobile G1, web browsers on handsets are generally useless under intense