Nope. it IS more compatible. With old clients, etc.
That's confusing being more compatible and being safer. That's not the same thing.
K-9 on android does not have support for PGP/MIME, probably wont have it for the time to come as it requires fundamental changes in the way the program stores the mails. There doesn't seem to be any open-source mail app on android that can handle PGP/MIME (correct me if I am wrong, I really like to know)
Windows Mail displays the mail's content as an attached text file, which is quite inconvenient.
On the plus side, several web clients I have encountered are now able to handle it. So there is hope.
Handle PGP/MIME or inline PGP? Which web clients? Thanks.
To be clear: I am talking of displaying a PGP/MIME mail correctly. I am not talking about verifying a signature or composing a signed/encrypted mail (which you probably shouldn't do in a web client anyway). Inline PGP is neither parsed nor recognized.