Time59, the web-based time and billing application for independent professionals, now runs in the iPhone Mobile Safari web browser as smartly as it does in computer-based web browsers.

Users can track time and expenses, email invoices to clients, and manage accounts receivable from any internet-connected computer, iPhone or iPod Touch.

"Imagine being away from your office talking to a client on your iPhone. When the conversation ends you can send the client an invoice. Or you can check the status of the client's account before your call," said Christopher Monaghan, developer of Time59. "The recent iPhone enhancement addresses the needs of busy professionals, including those who have chosen to 'go virtual' instead of maintaining a traditional office."