Use .dmg rather than .zip for Mac OS X

Arturo and I have been discussing the creation of a normal looking Mac OS X .dmg for OS X users - this would include the big pretty background that users expect. We believe that this will normalize the OS X install process to be more like all other OS X software.

Helix expressed some concern about size and said that we have a 25MB limit with gmail. It seems that we are already over this limit with .zip as well as .dmg.

Helix further expressed concern about having to upload two sets of files. I believe that this is resolved by only uploading .dmg files rather than .zip files.

If we need to send TBB for OS X with gettor - we will need to reduce the size in either case. I do not understand how we currently send .zip files of TBB for OS X with the size limit.

Many users have expressed serious issues with the .zip - it is very confusing for them. The user complaint is that it is against all their OS X user experience and training.

In any case, I think that gettor could easily be modified to zip up a .dmg and it would prevent the need to upload two sets of packages. In no case does Helix need to upload two sets of packages. However, I do not see how the current set of packages actually works with Gettor if we are already over the 25MB limit.

If the size restriction only comes from gettor/gmail - I think we should weigh the total number of gettor downloads (~400-500 a day for all platforms) against the the total number of HTTP/HTTPS (~10000s a day for all platforms) downloads.

Helix - does that about sum things up?

Arturo - does that sound about correct?

What can we do to move this forward and to offer .dmgs? A patch to make a pretty .dmg? A way to zip up a .dmg for gettor? Anything?