TwitterGadget is a Twitter web client, somewhat different from other applications because it has a UI specially designed for a gadget, like smart phones. TwitterGadget uses AJAX for the user interface and an advanced setting control. TwitetrGadget has Twitter’s basic features plus some additional features that are not owned by any other web Twitter clients, such as @reply AutoComplete, a built-in translate system, insert symbols, user’s stats, and block spam.
Advanced settings
Color chooser
Tweep’s info
@reply autocomplete
Insert symbols
Highly recommended for gadget users 
(if you do not like to use applications such as UberTwitter)
I'm a TwitterGadget user as well. 2 Additional features that are must have's in my opinion are the ability to temporarily mute users in your timeline, and similarly, the ability to filter tweets from your timeline with specific keywords, regardless of the user who tweeted.
- spam
- offensive
- disagree
- off topic
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