Nope, the languages don't have a damn thing to worry about.
I'm gonna briefly discuss this language, but keep in mind I'm very blazed at the moment, and still a bit drunk. So it may be kinda weird.
Bento looks kind of interesting, it looks like a simple way to develop dynamic web pages. However, when people want a simple way to develop dynamic web pages, they use PHP. The biggest problem is that it sits on top of a Java servlet. Most people don't have any form of Java support in their hosting plans, it's just not common. Serverside Java is used by serious developers, not somebody who wants to have a little blog system on their site. Although I did write a blog system in Java
The point is, the people who have Java support, thus enabling this Bento language, are going to be using Java anyway. So by being a language built on top of Java, it moves away from its target audience (basic users wanting to easily develop dynamic pages), and becomes accessible only to a group of developers that doesn't need or want it.
I imagine that Bento could be extremely powerful, because it would be able to take advantage of the rich Java API. It's obviously still very young and in development, and it'll be interesting to see where it goes.
It looks like it could be a good little language. Doesn't do much right now, but with some development, it could be pretty good. The biggest problem though is that it's not accessible to the group it targets, and the group who can use it doesn't need/want it. I don't see this ever becoming a main stream type language. I'll stick with Java for now (and discuss it a bit more later today, when I'm not quite so messed up).