As they are, and limited only to what they do... no, I do not like them. I found myself speaking to a crowd this morning. Ten or so people. It was quite an ordeal to introduce my character to each and every person there on an individual basis, when normally you would just proclaim your name to the entire crowd.
Another issue came up when people started introducing back. The people without intro's were lost in the crowd, and it becameanother ordeal to make sure everyone was intro'ed to my character. I think I did miss at least one or two. (there was a reason for needing to see the individuals)
Let's also take into account two more things. One, you never say anything when you intro, mechanics side, so you have to still RP "Hi, I am <name>". Two, if you did intro, and there were folks near you, they would also hear your name, and know your name as well.
Last, you must take into account those you have met, seen before, or had someone else say "That is <name>". The first two you can know, but not know the name of. I give the example of a Klyros I met coming on my way back from Gugrontid. He asked for directions (in a very good RP manner), and I responded alike. If I met that Klyros again, I would not know his name, but I would know him. If someone points at another character and says his or her name, then everyone is also going to know that person's name.
So, as a stand-alone feature, I find it hard to use and distracting. It feels very unnatural. As a single feature in a larger system that would account for the examples above, it would be a good start.
In addition... >.> <.<
http://hydlaa.com/smf/index.php?topic=28003.msg321194#msg321194 