The link doesn't exist. Please re-post. No chip/firmware/driver is bug free. However, I believe TopDog is the best in the market, highest performance at lowest power.
Read this article. It's not saying that it's a iPhone hardware problem - it's saying that it's a WLAN problem with Duke's network. The iPhone's wifi is working fine. There's just too many people with them trying to use the same network and flooding it with a ton of requests for access.