Commercial app version numbers

In the real (read 'commercial app') world, I've noticed that version numbers go something like this (not all version numbers shown):

• 0.2 // It's not even working on our developper's PC
• 0.4 // We can't sell that yet
• 0.8 // We are trying to sell it
• 1.0 // We are selling it
• 1.1 // Now it works, we swear
• 1.4 // OK, now it's stable
• 2.0 // We know you wouldn't shell out for version 1.5
• 3.0 // Just to keep you updating
• 9 // Honestly we lost track of the minor number too
• 13 // No real difference with version 9
• 2005 // Well, our customers were losing track of the major version number too, so that'll make it easier for them
• 2008 // Hey fatty, time to upgrade, you previous one is 4 years old now, can't you count ?
• 2010 // No change, but, hey, time passes fast
• 1.0 // We had to rename it

Source: http://linux.slashdot.org/comments.pl?sid=2196142&cid=36286508