Well, you're asking for amateur radios which natively send text, and there are many amateur radios which natively support APRS. APRS can send text. Hitting an I-GATE, they can send and receive SMS. So from my Kenwood TH-D74A I can natively send and receive text. There are many radios out there which natively support APRS, which means they natively support text. Many other radios can natively support this text functionality. It seems like its the thing you were requesting in your earlier comment, but you're brushing it away. What is APRS lacking in terms of text transmission?