CompassKeyboards main goal is to enable entering any character (including international characters and symbols of computer languages as well) with the same layouts.
Default layouts support Latin- and Cyrillic-based and Greek character sets user-defineable external layouts are supported as well.

For entering a plain character just 'grab' a key and drag it to some direction for entering some accented ones do a big swipe across the whole keyboard :)! Depending on the direction of the big swipe you can choose different sets of accenting.

For choosing a different layout do a big swipe from the top-left corner of the keyboard across to bottom-down and choose a layout from L0 to L6 (L0:Latin L1:Cyrillic L2:Greek L3-L6:Custom).

To get a visual feedback about the symbol you are about to enter visit the entries 'Feedback/Normal feedback' and 'Feedback/Password feedback' in the Settings menu and choose either Toast or Highlight.

Supported Latin-based languages:
Afrikaans Albanian Azeri Belarussian Bosnian Croatian Danish Dutch English Estonian Faroese Finnish French German Hungarian Icelandic Irish Italian Kurdish Latvian Lithuanian Maltese Norwegian Polish Portuguese Romanian Scottish Serbian Slovakian Slovenian Spanish Swedish Tatar Turkish Vietnamese Welsh

Supported Cyrillic-based languages:
Belarussian Bosnian Bulgarian Kazakh Macedonian Russian Rusyn Serbian Ukrainian Tajik Tatar.

For a full documentation and source please visit the link http://code.google.com/p/compass-keyboard/wiki/CompassKeyboard

CompassKeyboard is completely free of charge (not even ads) voluntary donations are thankfully accepted via PayPal.