I am debating developing a WebkitMVC for mobile devices. 37Signals took theirs one way and I want to hack one out in my direction of mobile web apps that install as mobile applications. The reasons for the debate is a possible job interview.
I just like challenges and have code out something for an interview, I do not know how else to prepare for a developer interview than develop. Also, Node.js, Coffescript, Backbone.js and the performance of VMs for javascript integrated with webkit make it now possible to do somewhat complicated applications fully in javascript using webkit/html5/css as the UI without the performance degradation seen in the past.
HackedLabs Blog 