I always find it interesting that sci-fi depictions of "evolved" humans (i.e. many years in the future) usually depict very tall, thin - even willowy - figures. That seems to fly in the face of general trend :)
If humans survive long enough to become highly advanced technologically, we'll almost certainly have a high degree of control over our bodies. Tall, thin and handsome is probably to be expected. See Iain M. Banks's Culture novels for a fictional depiction of this pushed to the extreme (people there can even chose to switch from one sex to the other whenever they feel like it).
One thing I've become annoyed with lately is how little planning anyone does. Who needs to make solid plans when you can can just call someone via cell phones and make the plans as you go? It makes coordinating more than a few people very hard.