Pastebin for Android (aka Pastedroid) allows you to paste text to Pastebin and includes a history tab to keep track of previous pastes.
Appears in the share menu; perfect for use with aLogcat or Log Collector!
If you have feedback, email me, don't just comment!
Update 3.5 (4/18/12)
• Added Holo theme for Android 3.0+
• Fix private/unlisted issue (sorry it took so long!)
• Other bug fixes and enhancements