I've made an importer for characters from dnd4e (character builder) files:
Interface is very rudimentary, but it works. Sample import was to here:
All the data on that character was read from the dnd4e file.
The dnd4e files exported from the online builder have recently been updated with a whole bunch of extra useful data for rendering a character sheet, so I'll probably be putting together a dynamic sheet template for displaying characters in a style more similar to the sheets you can print from the builder.