I've been using iOS 7 on my iPad since beta 1 and while it still has its issues I never found the experience even slightly nauseating. That is why I was a bit surprised that upon finally installing it on my iPhone for the first time last week, I felt a bit uncomfortable or slightly unease with it after several hours of use. I wouldn't say I felt sick, but I just felt a bit put off. At first I thought that maybe it was the animations, as has been discussed in another thread, but it just didn't make sense to me because after all, I had been using essentially the same OS on my iPad for a couple of months without any issues. I understand that for many it is very much the animations that are making people feel a bit off, but for me it turns out that it wasn't the case at all Then I tried a setting being discussed in another thread - bold text (General -> Accessibly -> bold text). I found that after several hours of use that the slightly nauseating feeling that I was experiencing was gone. I thought that maybe it was just a coincidence, after all it's only text, and apart from that I have absolutely perfect vision and have no problem reading the tiny thin text under the icons. So I tried a little experiment where I would switch between the two at the end of each day. I found that on the days that I didn't have the bold text enabled, the off-putting feeling would come back, and on the days that it was enabled, it would just feel a lot more right. Sure it boldens text in almost every first party app (yes, text messages look a bit chunky now), but I think the main thing is that the small text under the icons now look closer to what I feel that they should have been it the first place. Again, to be clear, I can read the text perfectly even without setting enabled. I have excellent vision and have never needed to wear glasses, and I don't have issues with reading small text. Here's a comparison with the setting enabled/disabled (yes looking at these pictures, which i've had to scale down, on a big monitor is mostly useless, but just to give you an idea): In my opinion, the slight boldening of text in beta 3 didn't go far enough, especially because it didn't incorporate the text underneath icons. I really feel that it should of been shipped with bolder text from the start, and I wouldn't be surprised if we see this in a future release. I know that many won't agree with me, but it somehow definitely made a big difference for me. At the very least, give it a try.