Is Linux Difficult to Use? - page 5
The one major problem that Linux does currently face is with commercially available software. Although Linux is strong in free software, if you have a favorite commercial package you would like to use under Linux you may have to wait for it. Currently many manufacturers are promising Linux versions but there are not as many applications available for Linux as there are for Microsoft Windows.
In terms of usability this is a real problem, as switching to an alternative program can affect productivity. The solution is in the hands of the applications software makers. Given the many advantages of Linux software makers are turning to it. It is only a matter of time before Linux becomes a major market for commercial software and also free software.