Tumblr is building theme customization into their app

[iMore.com]

A new Tumblr app is on the way to Android and iOS devices, bringing a new level of blog customization to your mobile device. Previously, there was no built-in way to make edits to your Tumblr blog when mobile, but now users will be able to change things up on the fly, whether at home or on the go.

Full story from the iMore Blog...