Jott Networks, operators of a voice-to-text service for mobile professionals, reported Monday that users of BlackBerry smartphones can now reply to e-mails by using Jott's voice-to-text technology. Jott explained that the added functionality gives BlackBerry customers a fast, easy way to verbally reply to e-mail messages. The new feature requires the download of a Blackberry application to operate. Jott is venture backed by Bain Capital, Ackerley Partners, Draper Richards, and Skype founder Niklas Zennstrom.