I think having some form of anonymous transactions is a must... it's best if the process involved is so convoluted and poorly documented that absolutely no one can reliably use the feature.  Then throw a TOR onion logo in just for giggles (doesn't actually have to use TOR... but, hey... ONIONS... who wouldn't want that).

Also wallet needs animations... preferrably everything should be animated... so it looks like a miniature circus running on the desktop... not some pathetic 'financial app' - and the coin logo needs to be so huge that it actually expands past the chrome of the window itself!