I agree about the team vs. solo. If someone told me he had written a huge application in Perl all by himself and 90% of the code was his, I would not see that as a good thing. Much better to hear something like "I wrote a successful application with a zillion features that was able to turn on a dime when the business asked for changes, and took only a few hundred lines of code, and I did it by collaborating well and reusing tons of open source code from CPAN."