Today's definitely a big day for Tumblr: there's a refreshed iOS app in the iTunes Store! And, well, a bit of other news, too. But you'll hear plenty more about that later -- for now, it's all about mobile. The blogging platform just updated its application for iPad and iPhone, adding that "fancy new post type chooser" that recently made its debut on Android. The design tweak enables one-click access to a variety of post tools, letting you submit video, chats, links, quotes, photos and text, with colorful icons to match. It's yours for the downloading at the source link below.