* The tech entrepreneur has revealed a product called 'XMail' is 'coming' * Elon Musk launches his answer to ChatGPT called 'Grok' Elon Musk has already released his own version of ChatGPT. Now it seems the tech entrepreneur is about to take on Google's Gmail by creating an email service of his own. In an exchange on his social media platform X, Musk has revealed that a product called 'XMail' is 'coming'. He's offered no more details about the service, so it's unclear when it may be available, although it's expected to be integrated within the X app. MailOnline has...