IPR Issues
Patents (global reach for broad business methods and software patents)
Free software (greater risks and liabilities for developers of free software)
Fair use (suits filed in countries with narrow fair use exemptions)
Reverse engineering (not permitted in some countries)
Sui generis IPR regimes (having to abide by sui generis laws that don't exist in home country, like EU database protection laws)
Trademark (issues concerning fair use, anticompetitive practices, criticisms, etc)
Trade secret (laws different in different countries, chilling whistleblowers, etc)
Unfair competition (laws different worldwide)
Government copyright (government suing under crown copyright for putting government documents on the web i.e. UK M5 examples)