Now we are making another leap forward with VoiceType. A noise-cancelling microphone is included with Warp 4. It's one of these lightweight headset microphones, and it is very adjustable and comfortable. I suspect some people will seek out wireless solutions though. I have, on several occasions, forgotten about the microphone and walked away from the computer.
Navigation is the simpler of the two and requires fewer resources.
I then read and reply to e-mail, again using Voice Navigation commands. When replying to e-mail, I use Dictation, which requires a bit more than Navigation in terms of processor power and memory. IBM's stated requirements for Navigation are 16 megabytes of RAM and a 75 MHz Pentium. The minimum for Dictation is 24 megabytes of RAM and a 100 MHz Pentium. I tested Dictation on a 90 MHz Pentium with 32 megabytes of RAM, and it worked just fine.