Please be advised, not all Poker Calculators are bad. This is just an example of one group that took advantage of a situation and placed a backdoor/spyware in a calculator download.
Here is the information from 2 of the leading Antivirus providers on this threat.
This is the first time that I have ever heard of something like this, although it was only a matter of time before it happened at least once. what would you use the information collected for anyways?