Not in Lion 10.7. However, that could change in the future. Most likely what will happen in future versions (let's say 10.8) is apps that don't pay the apple ta

Not in Lion 10.7. However, that could change in the future. Most likely what will happen in future versions (let's say 10.8) is apps that don't pay the apple tax will get very scary warnings about how they are potentially dangerous to the user and his computer. This is already in place where anything downloaded from the internet gets a warning the first time it is run, but this warning may get scarier. PS I think your question was a reasonable one to ask and the contingent of participants who routinely downvote reasonable questions are not being helpful.