Through Gmail Mobile, Google is now offering Gmail on cell phones, writes MarketingPilgrim (via BoingBoing). Users enter http://m.gmail.com into a phone's web browser to log in to their accounts. The interface is automatically optimized for the user's phone. Attachments are accessible, including photos, Word documents, and PDF files. Also, if users enter phone numbers in their Gmail Contacts list, they can reply to messages with a phone call.