Because of my everincreasing love of graphs and ways of visualising data, and an interest in infographics, here are two ways of visualising the dwarf fortress completion.

Box form- each row is a representation of a macro-item, such as the top one being 'wounds'. Each 2x2 'megapixel' is a single item on the development list, save the top and side row which are decorative (they encode meaning, but I doubt it's decipherable to anyone).
Alternatively:

Bar form- the vertical aspect is now meaningless, pixels are duplicated to make it easier to see. The separated first pixel on the left is decorative and encodes meaning that does not matter. This display mode resembles a defrag meter. Each pixel of width is now a development item. This one is less pretty, but perhaps more intuitive.
In any case, the raw percents for pixels are are:
158/195 100% completed (81.02%)
003/195 090% completed (01.54%)
001/195 050% completed (00.51%)
001/195 020% completed (00.51%)
001/195 010% completed (00.51%)
022/195 000% completed (11.28%)
009/195 feature deferred (04.62%)
170.5/195.0 raw completion score (87.44%)
It has been 435 days since release. This translates to 0.392 items per day, and gives an estimated release date of 63 days hence, on 17 January 2010. This is probably not the release date, since all items aren't equal (a fundamental assumption of these graphics), but it's how a guess via the dev item completion data looks.
This probably helps visualise how far the development has gone- there is a
lot of green on these graphs.
EDIT- Bar Form's bordering has been updated to look better.