Smart phones are the devil. If you want to be a common douchebag who sits around with friends or family and doesn't know how to look away from his precious phone, go for it. If you think you won't fall into that category there's a 75% chance you will*.
*statistics made up on the spot but damn it feels like 3/4*
Honestly I don't see the point of twitter. It would be nice to be able to check my emails, check product reviews, get directions, and search for a good restaurant; once in a while. And since I pay $55 a month for my current plan with 200 texts a month I wonder if it is an outdated, overpriced plan now a days.
As for the Laptop, I currently have a MacBook 10.4.11 unfortunately because of this there are no more updates for the browsers this can run so I've been getting some very gradual problems crop up and the computer is slowing down. Also the casing has cracked in some places. Generally I just use it to surf the web and organize my work in spreadsheets. I would like to play some games, but anything beyond a flash game is not a priority.
I'm not thinking of getting another Mac though, I think I'll go back to PC. The Mac's organization in regards to programs and all sub programs connected to them has been very useful though.