I'm a big fan of stored value cards for public transport (for example, I raved about Hong Kong's Octopus card in an episode of the User Experience podcast).
So I've been looking forward to myki, which is Melbourne's version.
Naturally I tried to sign up recently. Unfortunately, the application form allows me to fill in the entire form before telling me that myki is "not available" in my area. Perhaps they could have mentioned this earlier and saved me some trouble.
To add insult to injury, I was encouraged to re-visit the website "for regular updates", rather than being offered a notification of when myki would be available.
Caroline Jarrett and I wrote about this sort of thing in "Forms That Work", where we emphasized the importance of understanding three layers of forms design - Relationship, Conversation, and Appearance. Our publishers are offering a 20% discount on the book currently.