Although this website focuses on the issues that can affect Bluetooth and aims to assist in resolving problems caused by such interference, the opposite situation is also possible. So yes, Bluetooth can interfere with some other wireless technologies. The scenarios are pretty limited though.
2.4Ghz Wireless Networks
The most likely problem Bluetooth can cause is to interfere with older 2.4ghz 802.11b networks. This occurs because Bluetooth dynamically alters the exact frequency within the 2.4 GHz wireless band and sometimes "hops" onto the more fixed frequency range that 802.11b wireless uses. The end result is a transmission collision with the WiFi broadcaster having to send the data packet again, resulting in degraded performance.
On any modern wireless router / broadcaster this can be resolved by simply changing the wireless band "modes" that the device will use for its communication.
For more information on this problem see this very useful article: http://www.wi-fiplanet.com/tutorials/article.php/1379911
