may be a bug or twitter quota has exceeded?
* Add handling for hashtags (overriding the min character length)
* Slightly more complicated: consider adding click detection on mentions, replies, and hashtags to link to their perspective urls. This would be a very neat addition.
Click detection is something I have been thinking about, its not as hard as you think as the general coordinates of each word are stored when building the cloud in the first place.
Prime example: http://www.wordle.net/show/wrdl/1507537/Reservoir_Dogs (the easily offended may refrain)
To do this with Wordle, I have to use a word processor & spreadsheet to count the words, and specify the RGB color for each (all the same except the few I want to stand out, however common/rare). The "common words" removal becomes problematic when the words to highlight are in that removal list (say, when rendering a speech by the Obama to highlight frequency of "I", "my", "me", etc.). Ergo, would be nice to render all words no matter how rare, specify default and per-word colors without marking all, and indicate specific exemptions from the "common words" list.