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I'm now the proud owner of a five letter domain: Tickr.com (-:

I'm planning on using it to implement a simple webapp for todo lists. I got the idea from BaseCamp, but their todo lists lack some features I need. It's essentially a pet project on the design of a webapp with rich interface, and a REST API. The idea here is to document the design, and more than that, the development speedbumps. I'd like to document the real world problems of serving a web application under these requisites:

• Browser support for these and later versions: IE6 (win32), Firefox 1.0, Konqueror 3.3, Opera 7.54.
  
• XHTML markup, served under application/xhtml+xml MIME type for valid browsers (all but IE which'll get text/html).
• Javascript interaction where possible, "a la" gmail, without stepping over bookmarkability.
• REST API

I figure to-do lists are a simple enough problem that I can get the interface planned out thoroughly before writing the first line of code. On the other hand, I think there's margin for improvement over existing offers, so it won't be draft and scrap code.

As a first step, I ordered Getting Things Done. This looks like a pet project already (it's costing me money without a revenue plan :-)

The book is expected to arrive on the 15th, so until then the idea is simmering. I'm open to ideas, feature requests, architecture designs, world domination plans, get-rich-fast schemes or cure-world-hunger-and-cancer-too solutions. Just comment below.