I don't really care if people use tools WHILE playing poker or not. Tools like the one your probably referring to actually help me make money.
I simply hope they SOON realize that the tools are no substitute for their brain. If you don't have a brain for poker you really won't last long online or live. Tools are mostly used improperly and because of that give misleading results. Even if you use the tool properly (to get a feel of the odds better in your head overtime or some crap) its still misleading.
Quick little example: How many times have you seen (on TV) someone with a 80% next to their hand enter a showdown with someone who has 20% next to theirs, and all of a sudden the percentages do a 180 and the person who had 80% now has 0%-20% and the person formally with 20% now has 80%-100%?
Most of the time, both players in those situations have good/great hands (unless theres a
bluff). Though there is a 5%-10% chance, or whatever it may be, that both players have great hands, they still both have the great hands. How does a program and/or odds calculator help? Not in just this, but any situation? How does a tool help you in a more USEFUL (knowing exact percentages are USELESS) way than your brain can't?
Now, you might think that this situation is due to a lucky draw, and sure, your probably right. But guess what, thats POKER baby! How it goes down sometimes. A program can't help you, only cripple you in more ways than one (decision making, reliance, misleading results, etc) and the list goes on forever.
So, I don't feel its illegal or wrong to use programs, but the brain gets my vote!