A quick googling allowed me to find some more reviews about SpeedCrunch on:
Lightweight Linux Review
Wednesday, March 12, 2008
SpeedCrunch trunk running on KDE 4. The new (optional, as almost everything else in the application) status bar and the new automatically generated syntax hilighting colors are shown. Not shown is the new feature that allows the user to select a part of the expression being inserted and get its result immediately in a tooltip (just like calc-as-you-type). The math book also got a new style sheet. I hope that in the future we can adapt it automatically to the system colors as well (the only tricky part is to make images adaptive).