iPhoto2Gmail v0.9 and Aperture2Gmail v0.4 have just been released!
Notable changes in both plugins: - Returned to naming attachments using filename and extension. - Message and Subject are now sent with UTF8 encoding to support more langugages. - Fixed issue where images would sometimes appear next to text in some email clients. - More error detection when delivery fails.
Also fixed a a crash that could occur when canceling the login panel in iPhoto2Gmail.