Since I just posted about the new Hakka-based Chinese character input method I would be amiss not to note as well the release early this year of a different Chinese character input method based on Taiwanese romanization.
This one is available in Windows, Mac, and Linux flavors.
See the FAQ and documents below for more information (Mandarin only).
Táiwān Mǐnnányǔ Hànzì shūrùfǎ 2.0 bǎn xiàzài (臺灣閩南語漢字輸入法 2.0版下載) [Readers may wish to note the use of Minnan, which is generally preferred among unificationists and some advocates of Hakka and the languages of Taiwan’s tribes.]
- windows and Linux Installation Manual (1.55 MB)
- Windows version (668 KB)
- Linux version (380 KB)
- Mac version (6.45 MB)
- Mac Installation Manual
source: Jiàoyùbù Táiwān Mǐnnányǔ Hànzì shūrùfǎ (教育部臺灣閩南語漢字輸入法); Ministry of Education, Taiwan; June 16, 2010(?) / February 14, 2011(?) [Perhaps the Windows and Linux versions came first, with the Mac version following in 2011.]