Here is a solution.
I have been using my palm pda for transferring text files to and from cnc machines.
Palm PDA is the best and inexpensive tool.
I have tested the Palm M100 and M125 and recently I was able to get Sony Clie to do the same.
If you are interested in this I can sell cables for pda to communicate with machines.
I do not sell software but I know where to get the software you can buy.