Nall, who lives near Alexander City, does have a campaign platfrom that consists of more than just drug legalization. In fact, her platform is worth a look if for no other reason than the combination of positions from both the liberal and conservative side. Thus, it is difficult to say whether her candidacy would have more appeal to Republicans or Democrats.
The Libertarians must collect around 40,000 signatures for Nall, or any other Libertarian, to appear on the 2006 ballot. Nall's site has downloadable forms should you be inclined to be one of the 40,000.
The 2002 Libertarian cancidate John Sophocleus received about 1.7% of the vote (23,000+ votes). That doesn't sound especially impressive, but it certainly could have made the difference in Bob Riley's 3,000 vote win over Don Siegelman.
Assuming Nall makes the 2006 ballot, it'll be interesting to see if her candidacy can improve on Sophocleus' totals. Certainly, this governor's race has the potential to be a nail-biter, so Nall's candidacy has the potential to help determine the winner.