I have had my Olympus OM-D E-M5 and the 12-50 mm kit lens for about 3 weeks now and I am constantly amazed by this piece of kit. It seemed expensive at the time but the image quality is excellent, heaps better than the Olympus Pen E-P5, and the 12-50 mm kit lens is very useful being weather proof, macro (approximately half life-size) and going to a respectable 24 mm full-frame equivalent.
Here is a photo from the kit lens in macro mode, hand-held and at a distance of approximately 0.3 m (or 1 foot in the old language).
This image is larger than real life even at this modest image size. Macro mode sets the zoom to a fixed focal length of 43 mm. The fold out LCD made this close to ground shot very easy and it was still clear enough in full-sun to frame the image. Quite surprised.
Travelling with the Olympus OM-D and the 12-50mm kit lens seems like an almost perfect holiday combination and gives incredible image quality for the size and cost.