I've asked again (http://news.ycombinator.com/item?id=1953774) but didn't get any valuable feedback, so I thought to ask again now that I've worked on it a bit more.
What Lideo does is save your videos so you can watch them again. The main feature is the interface which focuses on the video you are watching.
Why not just bookmark the video? On Lideo you can also rate your videos which is nice. What's nicer is, again, the interface: you watch the video and not much else.
I've been using it for a while now and I'm OK with it. There are quite a few things that I have in mind, but I'd like to get some feedback so I can prioritise a bit. For example, searching is on the list but further down. Making sorting videos in lists optional is at the top. Better bookmarklet is the very first thing.
I would also like to invite you to talk about its security. There are a few security stuff I am worried about. What Lideo does is use embed.ly to fetch and display oembed data from other sites. Please drop me a line at hello@lideo.me if you see the problem.
The site is http://www.lideo.me and you can start using it right away. Register if you like it to save your data otherwise your data will be lost when your session closes.
Many thanks