latest portage version is 191a.zip file on the home page. no need for 1.9 + update packages (1.93upd still needed) any longer. i know, that it's more convenient to have the updates, for ppl that already downloaded the 1.90 package, but it would be great if you could add the 1.91a full zip to the package as well.
sorry, for the strange english. obvously i started the first sentence with something different in mind and forgot to edit it right. i wanted to say, that the ebuild requires the 1.90 + updates, but that there's already a updated version of the zip. at least for the 1.91a package (not the 1.93).
I personally think that it would be a waste of time to modify the ebuild, and would require anyone updating to a new version to redownload a fairly large file. Instead, file this when the next full version zip file is released that matches the latest version, and we'll gladly change it to a single zip file.