Alan Reiter:

"The phone keypad is an ergonomic disaster for entering long messages. But with new wireless devices with keyboards coming out this year, such as the Danger hiptop, GSM GPRS pagers from Research in Motion, and pager/phones from Motorola, it will be interesting to see if the Weblog phenomenon helps spark greater use of SMS."

Voice recognition could ease phone-to-blog interfaces, though these posts might sound, er, I mean, not always, you know, as properly written as they should.