End of support for OS X 10.4 and 10.5

We need to demonstrate that there is still a significant PowerPC (PPC) user base out there which uses Dropbox Desktop Client. Just because it's old doesn't mean it should go away. We still use AFP and PostScript, don't we? I still use Timbuktu (originally developed by WOS Datasystems/Farallon/Netopia...) for remote control. A portion of Dropbox's income should go toward continuing support of legacy hardware and software. Being backwardly compatible and cross platform should be an ideal, not a burden.

For Dropbox to decommission Dropbox Desktop Client for Mac OS X 10.5.8 messes up my workflow and backup strategy.

I have Dropbox syncing nicely on my new Synology DS 1513+ NAS using Synology CloudSync 1.0. Now do I have to live in fear that Dropbox will decommission syncing within CloudSync? The DiskStation Manager (DSM) web-based operating system, based on the Linux Kernel, runs on an INTEL Atom D2700 processor. I read that Synology's CloudSync uses Python and the Dropbox REST API which allow it to interact with Dropbox, in a similar way that the Dropbox client does for Windows, Linux and OSX.

There are Core API SDKs here: https://www.dropbox.com/developers/core/sdks/osx
And here: https://www.dropbox.com/developers/core/sdks/other

The ReadMe for Mac OS X SDK 1.3.13 (software development kit) says this:

"Getting Started Using the DropboxSDK for OSX:

Requirements:
1. You need Xcode version 5.1 or later.
2. You need to have registered your app at https://dropbox.com/developers/apps
You should have an app key and secret.

Note: The SDK is designed to work with OSX versions 10.7 and above."

There you have it. No more SDK support from Dropbox for Mac OS 10.5 and older. I'm not a programmer. Makes me dizzy thinking about a custom-programmed application to provide my studio with continuing desktop synchronization in Mac OS 10.5.8.

Regarding someone's question as to whether there is an FTP method for accessing Dropbox, the answer is currently "no". Here is a note from Dropbox's Help Center:

https://www.dropbox.com/en/help/62

"Do you offer WebDAV, Email Attachments, or FTP support?

WebDAV, email attachments, and FTP access is not on the current feature roadmap, and likely won't be for the foreseeable future.

No hard feelings. This isn't a "no it'll never happen." But we're currently working hard delivering other, equally exciting features."

I am curious as to which Open Source and Third-Party components are causing Dropbox to drop legacy PPC support and functionality for Dropbox Desktop Client. See http://bit.ly/DropboxDesktopClientforMacandLinuxOSThird‐PartySoftwareNotices
Screen shot of DDC 3.03 in service: http://www.schlettydesign.com/images/legacy-dropbox-support.png