Are there any plans for a client that doesn't use Flash for the interface?
You can see what's being worked on with the LEM roadmap by looking at this page:
What We're Working on - Log & Event Manager Edition
There's also some Feature Requests you can up-vote:
https://thwack.solarwinds.com/ideas/2157
We get this question a lot - can you share why you ask? Hate flash? Interface seems slow? Loading times stink? Anything else? (Yes, we are looking into it - but no, it's not yet on our roadmap.)
The Flash interface make LEM painful to use. Besides being VERY slow, there is no right-click, almost no clicking (very few places to click for more info on an event), plus compatibility and security problems. I do not use LEM nearly as much as I would like to because of these limitations and am actively looking for a replacement that is not as painful to use.