My weekend project was this edit-in-place style invoice maker, with one button PDF generation and localStorage for everything. Aside from the PDF generator step, everything is jQuery powered and there is effectively no backend. This is (I suppose) an Alpha version, only really tested on webkit (iPad, Safari, & Chrome).

Feedback would be great: it's my first foray into web app development and I'm finding it hard to look at the page with fresh eyes—although I have my doubts about its usability in certain areas! All comments are welcome.

Part of me is tempted to attempt a platform for edit-in-place documents of this nature, I'd be interested to know if there is a similar approach taken elsewhere.

Many thanks, Stephen

(Note that this is a sort of follow up to my Ask HN http://news.ycombinator.com/item?id=2394319. I've taken on board the excellent advice there and have been doing lots of reading and experimenting. Want to get into the habit of shipping things ASAP though, so this is a small first step in that direction; it's also a tool that's handy for me.)