In case you have not noticed you can not use a classic stylus on the Galaxy Tab or other capacitive touch screen devices. There are tons of other capacitive styluses on the market but first party accessories usually work and look better.
Samsung sent the Galaxy Tab 10.1 in for FCC certification. It is always good to make sure that devices will not spontaneously explode before putting them on store shelves.
The Galaxy Tab 10.1 WiFi-Only will be available June 8th in 16GB and 32GB fashions for $499 and $599 respectively.
Source: Wireless Goodness