37signals, developer of the popular Basecamp and Highrise web-based productivity applications, has released its first iPhone app. Highrise for the iPhone and iPod touch is designed to allow users to access their contacts, notes, e-mails and tasks from Highrise while on the go; deals and cases are not yet supported in the current version. The application downloads and syncs Highrise information directly to the device so that users can access their contacts and notes more quickly and without requiring an active data connection. Highrise uses its own local contact database rather than the iPhone’s contacts, allowing users to keep their Highrise CRM data separate from their personal address book. Users can also record and attach voice notes to contacts, which are automatically synchronized back to the Highrise server, and view any other attachments that are natively supported by the iPhone OS. Noting that the initial download of Highrise information to the iPhone may take some time, 37signals also provides a simple tic-tac-toe game for users to play while waiting for the download to complete. Highrise is available from the App Store as a free download and requires a Highrise account. More details on the app can be found at the 37signals blog.