Plum Amazing ( has released three Mac OS X 10.7 (“Lion”) applications: iWatermark Pro 1.0, PixelStick 2.2 and KnowledgeMiner (yX) 2.9.

IWatermark Pro 1.0 is a major rewrite of the original iWatermark for the Mac. It’s an US$30 watermarking app for photographers that’s compatible with iPhoto, Aperture, Lightroom and more.

PixelStick 2.2 ($7) is an universal ruler and eyedropper that measures color, angle and distance in any application on your Mac. KnowledgeMiner is a tool for data mining/modeling. It can be used for classification, modeling, time series forecasting, sequential patterns and more; pricing starts at US$300.