How could I forget about this one...

This is a major drawback. It has one of the worst web browsers I have dealt with. The UI is alright and can be easily extended by patches (then you can share to Instapaper/Pocket in the menu, switch to Private browsing etc.) which makes it quite powerful, but the engine behind it is just terrible. It fails to download most files (pretty much every time you don't deal with straight links, but php redirection) and the fact that it is the only web browser on webOS makes it even worse.

Sure, you can use a browser in Ubuntu chroot or Firefox for Android on the ACL (only for Touchpad IIRC), but those are just emergency solutions.

I think that if webOS had a decent web browser, it would be quite an appealing system even today. How ironic is it that a web-based OS has such a bad web support.