Great! The screenies look good enough not to stop a release if we don't get anything better. In fact they are not bad at all.

Is there more playing real games with the version in Extras-devel? There is at least one bug in the engine caused by an unknown reason: https://bugs.maemo.org/show_bug.cgi?id=8141

More tests would help. If you don't find a sparring you can always pick a famous game and play it through with Miniature. Looking for inspiration? http://www.chessgames.com/