ABBYY has been being doing Windows-based optical character recognition software for years, so it's not surprising that it offers a neat (if rather dark) and useful interface.
To capture a card, simply line up its edges using the on-screen guides and snap your photo. The software controls your camera's autofocus and captures the card, puts it through an OCR process, then gives you a chance to edit the resulting text.
The software highlights problematic areas in red, and you can see a small window of the relevant scan area for a given field, which makes edits simpler.
Back to 7 business card apps for smartphones: Scan 'em and store 'em.