The Omni Group today announced the release of OmniGraffle 4.1 and OmniGraffle Professional 4.1. This new version features a number of bug fixes, improved stability, updated localizations, and readies the application for compatibility with future Mac hardware based on Intel processors. OmniGraffle 4 is priced at US$79.95, and OmniGraffle 4 Professional is $149.95. Upgrades from OmniGraffle 3 to 4 are $29.95, and upgrades from OmniGraffle 3 Professional to OmniGraffle 4 Professional are $49.95.