2. You're definitely right about this. Before I ever started developing the app, the number one feature in my mind was always SMS capabilities. I'm not really sure why I haven't made this more prominent. Regarding the validation code - that's just there because I'm still on the free developer plan with Twilio. I guess I want to build up the SMS features a bit more before I step out of developer mode.

3. Already in the pipeline. Will be an awesome feature, I believe.

4. Pondering this, but it's a toughie. Trying to keep things simple, uncluttered, and easy to use while adding more features is one of the most difficult challenges I have faced.

The design and interface are completely original. What you're seeing is about the 4th major rendition over the past 2 months. As I am writing code I keep striving to make Pocket better and better (visually) and I'm pretty happy with where it's at now. We'll see how long it takes me to get bored =]

As for the authentication, I rolled my own (with the help of some tutorials) but I believe its pretty similar to authlogic. I'm sure I can add a password reset feature, but I just haven't had a chance to look into it yet.

Thanks for all of the kind words. The support here on HN is incredibly motivating and encouraging!