Really does no one consider the possibility of making the GUI a web application that runs in browser on the users own machine? It would be like running an instawallet on your own computer with the possibility of entering in console commands.
Yes it has been considered, even with added functionality of enabling dot-bit browsing and future namespace extensions (ID, etc) ... but the security is difficult.
http://dot-bit.org/Namecoin_WUIhttp://dot-bit.org/forum/viewtopic.php?p=1300#p1300