http://ebisa.hp.infoseek.co.jp/os2/index.htm#qwit
System Requirements
- OS/2 V4.50 (WarpV4 with FP13+, MCP, WSeB, ACP...) and eCS
- Pentium or above CPU
- TCPIP32
- libc063
- QT4 runtime for OS/2 (at http://svn.netlabs.org/qt4/)
- gcc442.dll (http://download.smedley.info/gcc442.zip)
- ...and of course, your Twitter account;)
Source: OS2.jp