I've tried jupiter. It's an interesting package and I'll get some sighted assistance with it in a couple weeks if all goes as planned. I managed to get it working on an acer with 16mb of ram with a doubletalk lt synthesizer but couldn't get it to work on the dell with 128mb of ram. Same disks, and same synthesizer in both cases and same kind of serial port too. You're best results will be with the doubletalk line of synthesizers the dectalk line is problematical since the author probably didn't manage to get the full technical specs for that line of synthesizers. On the acer I found a different paradigm for screen reader which used minimal amount of keys but for the time I had used it it was responsive. It's intended that users of jupiter roll their own keyboard maps for the synthesizer and extensive information is made available in the manual to do that though.