Simple answer... no.
Attempting to cheat the system is never worth it, because sooner or later they will find out and when the do their response may so severe (see google PR0 for an example) that it outweighs any potential gain you could make.
The problems with that plan are many...
1) AFAIK google isn't interested how many times a certain link is clicked, as they have more of an investment in page rank technology which works off incoming & outgoing links
2) In my mind this program would fall into the same category as things like WPG as it has the potential for abuse of SE services - all it takes is enough careless/greedy people and in come the penalties
3) Contrary to what you may think virtually nothing on the web is *totally* undetectable and I think given enough time anyone could identify this program for what it really is
4) The term "fake IP address" always makes me cringe, what they really mean is that they use a proxy server (which they happen to have built/found a list of), now this has two problems;
Firstly when the software reaches a reasonable number of users even a large list of proxies will quickly exhaust themselves. When this happens SEs can easily track the users of the program because they are using those proxies in a certain way. The more hits people want the faster the list becomes exhausted.
Secondly most proxies aren't supposed to be publically available and are just badly configured, potentially you could get the people/companies who own these proxies complaining about you using their systems without permission.
5) Would they notice 20 hits over 6 hours? Probably not but it's not just about *you* using this software, it's about the impact of *everyone* who uses this software. Potentially people could just run this a whole lot faster which would attract attention.