I also use the logmein app on my iPad to connect my ipad to my computers at home and work. Kinda sweet when you have cameras and you can connect to it using your iPad to look at who's in your house, outside your house and in your fish tank! I have the 3G Model. I hardly ever carry my laptop anymore!
I know in November they are going to release the new OS for the iPad so it will have more features like multitasking. I've been also using my iPad as phone using the skype app and another app called text free. So I have 2 phone numbers and all emails tied into my iPad. Comes in pretty handy when your selling things on craigslist and you don't want to give your real phone number out. Best thing of all NO Viruses!