Readwriteweb has another great post: Mozilla Does Microformats: Firefox 3 as Information Broker
Microformats are XML and XML is machine AND human readable. From end user perspective, microformats has nice display. But for machine readable, firstly it should be developer readable. Developers typically read specifications. We can argue hCard is readable. But I feel a conceptual level model should make microformats easier to read and understand.
