RDM+: Remote Desktop for Mobiles was a SHAPE Services product for accessing a PC from a phone. The archived August 26, 2007 listing directs iPhone and iPod touch users to iphone.rdmplus.com and describes reaching programs, files, email and network resources remotely.
This historical guide concerns that browser-era listing. It does not establish that the old connection service still works or that the same setup is appropriate for a current computer.
The computer remains part of the task
Remote desktop access and file transfer are different ideas. In a remote session, the phone acts as a way to view and control another computer. Moving a document onto the phone creates a different workflow, with different questions about where the work is being performed and saved.
That distinction helps explain the original appeal of RDM+. The listing presented access to an existing PC environment, rather than claiming to replace every desktop application with an iPhone version. The computer on the other end was still central to the experience.
Small-screen control needs a clear purpose
Before evaluating any remote interface, choose a specific task. Checking a detail in a document and carrying out a long editing session place very different demands on text size, pointer accuracy and keyboard access.
A useful test is a short sequence with an obvious result: open the intended window, locate one item and return to the starting point. Notice whether the interface makes it clear which machine receives your input. Losing that distinction can be more confusing than a simple delay.
Think through the whole connection
The phone application is only one part of a remote setup. The host computer, its software, the account used for access and the connection between them all contribute to whether a session can begin and continue.
For a current product, consult its own documentation for supported systems and access controls. An old compatibility statement cannot establish those details for later operating systems or a different service using a similar name.
The 2007 RDM+ page is evidence of an early attempt to make an existing desktop reachable from the first iPhone. It is useful software history, especially when kept separate from later native RDM+ releases and from unverified present-day connection instructions.