Changes have been made in Git for this ticket:

Bug: 10050 Don't remove tmp image file at request shutdown.
Commit 9fd6579fa7b1e1a920601c3f9517c1fd18a84c0e broke the existing
behavior of not removing the temporary file. This restores that
functionality. Not sure if this is the final fix for this, as this
causes tmp image files to build up in the temporary directory. However,
this was the previous behavior and should be the admin's job to perform
gc on temp directory periodically anyway.

  1 files changed, 1 insertions(+), 1 deletions(-)
http://git.horde.org/horde-git/-/commit/3a6dae7dab4c44fce7e283bd0c0ed4489808851a

I've traced this down to the fact that the file is regestered for 
removal at request shutdown, so when the img is requested by the 
browser to render the <img> tag (which is a different request) the 
image is gone.

Not sure what the solution here is yet...

possibly also causing Bug: 10035

This broke very recently. Was working last time I was testing 
ActiveSync'ing the photos.

Ubuntu 10.04

Photos stored in /tmp

Steps:
1 - Upload a photo contact. it appears ok in turba
2 - Save contact and photo desapears from contact.

Reason:
The filename for the photo changes after the save.
Ex:
After upload
?f=horde_form_XEho7M
after save
f=horde_form_4KKt4k