Another awesome one-button game: One-Button Arthur.
It’s from the same creator of One-Button Bob, it runs about the same length and it’s super-fun… 
I’m feeling a huge urge to do a one-button game for mobiles, specially if I can make it data-driven enough so that my friends can help me with level design…
For now, it’s just a pipe dream…
Been working on the mobile stuff, particularly orientation of the device… under Marmalade, it’s a bit complicated, since I already have a virtual resolution system that seems to clash a bit with their own, and I’ve been finding it difficult to find the orientation of the device from the low-level stuff… think I’ll have to use the resolution change event to find out the current resolution and extrapolate orientation from there…
Also found out that my cellphone (a Samsung Galaxy S) doesn’t detect the orientation change when it is upside down (which shouldn’t be a problem, to be honest).
I’ll start working on my current game in the next few days, starting with some background elements and interaction with the player’s finger…