One of my biggest beefs with the Android Market is that I can't browse the apps without an Android phone. I can see a very limited selection on the Market website, but to see all my options, I need an Android device (which I don't have). iPhone has iTunes and you can see every single option. Let me see what my options are and I'll be more likely to switch.
Um... no? Mobile phones and land lines connect you to the exact same thing. I can call the local JC Penny from my mobile phone and talk to a person who will help me find the right person. Have you ever used a phone before?
Why on earth are you still using a landline? A mobile phone will probably be cheaper, you can take it with you anywhere (even in your home), and most of them can sync with your computer contacts (or even your contacts in the cloud).