Automatic/opportunistic encryption wanted

Hello.

A year ago or so I posted asking about the possibility of automatic or opportunistic encryption. It was not possible back then but now that FireGPG can download keys from key servers it should be possible.

The official PGP product supports opportunistic encryption for Outlook. Basically what it does is: as are about to send an email, it....

1) tries to find keys for all the recipients first in the keyring and then on the keyserver
  a) if a key is found in the keyring it takes that key
  b) if a key is not found in the keyring but can be downloaded then it is downloaded and added to the keyring
2) if PGP was able to find keys for all recipients then the email is encrypted with all these keys and the key of the sender, if not then the email is sent unencrypted.

I think this is very useful because it means that you don't have to remember to encrypt mails, it just works automatically if possible.

It would be great if you could add this to your wish list. Thanks!