Gmail should allow saving mp3 attachments

[#1]

An attachment in gmail can't be saved. It can be opened with the
preview button and the internal player will start play, but there
 is no way I can save that mp3 file. 

[suze]

I have an X10 large so can't replicate to see if I can get the same result so bear with me as I am just firing out different thoughts....

If you long press on the attachment does it give you a list of options?  One possibly being to save to SD card? 

Do you have a File Manager on the phone?  I wonder if something like Astro would give you additional functionality.