Runtime Revolution announced the immediate availability of Ten Thumbs Typing Tutor 4.2 on Monday. The updated version of the typing skills trainer is a Universal Binary application supporting both PowerPC and Intel-based Macs. The update is free to current Ten Thumbs Typing Tutor 4 users, and is available for download at the RunTime Revolution Web site. Ten Thumbs Typing Tutor 4.2 is priced at US$25.95 as an electronic download, or $34.95 on CD.