My experience has been with ViaVoice (Mac) from the beginning through OS 10.3 and iListen starting with 1.5.1 (through 1.6.5). I wouldn't go the ViaVoice Mac route. It certainly has its advantages, but as Chuck says it is not longer being developed, and with each release of an OS update, a few more people find it doesn't work quite right anymore. There will come a time before too long before it just doesn't function. It's a dead end, in my view. That said, I'm afraid I'm one of those frustrated iListen users. I just can't get decent accuracy out of it. At least not nearly as good accuracy as I can in ViaVoice. It may just be that my voice more closely matches the VV voice model. So, what I did (not cheaply!), was to buy a PC and install VV for the PC, and I do my voice recognition work there. How often depends on how my RSI is feeling that day. VV on the PC works MUCH better for me than iListen on my Mac. I wish that weren't so, but there it is. And yes, I'm using a recommended microphone, I've followed Chuck's (and others) advice on this list, etc. When VV doesn't work anymore on the PC, I'll probably buy Dragon. However, I continue to support iListen, and will undoubtedly happily purchase an upgrade to iListen whenever (and I'm sure it's when, not if), iListen progresses to a point that MacSpeech feels it should appropriately charge for an upgrade. So, I'm an iListen fan, but not, at least not right now, a user. Robert