Doesn't utilizing Google Calender API over SMS conflict with the spirit of canceling the data plan? It feels like hacking around a self imposed problem.
It lets me check my calendar in the morning. An important use case, but not something that would generate habit throughout the day.
The biggest reason I would probably not be able to go through with this is that I'm pretty sure Verizon (maybe most carriers?) will not let you use a smart phone without the data plan. I just don't think I can go back to one of those horrid "feature phones" for basic cell phone things like calls and texting.
That's exactly what happened to me. But if you don't have the data plan, why would you need the phone? Two things I really like about my new feature phone... (a) phone quality is better (b) it's smaller