AVG and AVAST both seem to be rated very high in windows world, most people I know use one or the other. They should make a good choice for tablet users as well.
I've been using the AVG virus protection software app since I purchased my tablet almost nine months ago and have found it to be a consistent and dependable performer. No problems.
Lookout has actually warned me about 2 apps. Not because they were infections but because of possible privacy issues. The apps weren't important enough to keep and it offered to uninstall them. I trust it.
Sorry it took so long, Server hell at work you know...
To tell the truth I was not of the impression that every thread in the forum had to be exclusively focused on development. In fact I was assuming the opposite. That we could have threads such as this one where one could ask a simple question about our device and not have to worry about raising the ire of the entire, worldwide, development community.