OpenWiFiSpots - Hotspot location app
Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.
Wi-Fi Space - Hotspot location app
YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.
pttrns - iPhone and iPad user interface patterns
Talon for Twitter - Elegantly designed, ad-free Twitter experience for Android