If you've been on Twitter over the past day or so, you may have noticed some big changes to the way the site shows users' lists of followers and followees. Instead of just showing names and icon, these pages now display more detailed information, including location and most recent tweet. All of the actions you have available for each user are collected into a compact drop-down menu, so you can mention, direct message, block, follow or unfollow the user quickly.

Several users have correctly pointed out that the new design makes Twitter look a lot more like an iPhone-optimized site. It's definitely an improvement in many ways, but there's one small quirk I have to take issue with: in the old layout, the appearance of the "direct message" link next to a username gave a quick visual indication of whether that user was following you. You can still figure this out by clicking the drop-down menu, but it's definitely not as efficient as before. On the other hand, the new design does a great job of showing who you're following when you browse another user's list.