Description of problem:
When one updates a system, gpk-update-viewer doesn't display the actual size of files to download, as it ignores presto. This in very innacurate information.
Version-Release number of selected component (if applicable):
You'd have to find out from the presto guys how to get the size of the download before it's done -- if you find it out I can easily add this to PackageKit.
*** This bug has been marked as a duplicate of bug 499387 ***