The free version of their antivirus software prevents installation of a whole load of known malicious android apps, can filter/block spam SMS messages by content or number, prevent the SMS exploit that can disable your SIM card (this was patched in Android 1.6, but many people are still on 1.5). I don't know of anything else like that on the Market.
Their CheckMate app rates applications by their security level, as opposed to user opinion on the Market. Some people might find that information useful.
I didn't look at the AntiVirus Pro.
Their FindR app, while paid, also looks useful as it allows you to remote wipe your phone if it's stolen. I don't know of a free app that can do this. Other than that it offers features covered by other free apps on the Market (such as locating your phone via GPS).
I'm not saying the post isn't a blatant attempt to get more people buying their paid apps. Such posts are usually spam. However, this one at least contains interesting, useful, and relevant information on their front page. At least the apps are actually for Android (many spam posts are for iPhone apps), and at least they offer free apps which have some use.
