I'm trying to decide between a sl-c750, sl-c760, sl-c1000, or sl-c3100. I current use a Ipaq h4150 and own a sl-5500. The h4150 fits nicely in my pant pocket, however, it does sound like Familiar Linux will not be ready for the h4150 for a significant time. The sl-5500 is just too large for me to carry daily. I'm wondering about the size of the c models. Also, how much use can one get out of the models without the hard drive? Can you install many applications without a hard drive? The models without the hard drive seem more reasonably priced. I'd be using it primarily for PIM, but suspect the presence of Linux will cause me to think up other uses for the pda.