There shouldn't be a text message limit, at least nothing that isn't the same on all devices. Text messages (actually they are SMS messages) are limited to 160 characters, no matter what the device.It is just that some (many) devices will let you keep typing on for a while, and then send them out as individual 160 max character messages. This is also why when you sent a message to an email address from a text (SMS) message, and it is longer than that, the message may never show up in the email, or only the first part/message will show. And that may actually be shorter than the 160 characters, as it can include other info when sent to email. Also, if you send a message to a phone/text from email, that is limited even more due to mail...