Sirius Stiletto was a brand of satellite radio portable media players from Sirius Satellite Radio. The original model, the Stiletto 100, was launched in October 2006. (A predecessor, the Sirius S50, was portable but was unable to receive satellite signal unless docked.) The successor to the Stiletto 100, the Stiletto 2, was launched in November 2007.
These devices run Linux and the end-user software in these devices is powered by the Mono Framework a portable .NET implementation for many platforms, including embedded Linux systems such as the Stiletto.
Sirius discontinued the Stiletto line of products in early 2010, even though its ostensible successor (the Lynx) wouldn't hit the market for more than two years. This meant that consumers looking to purchase a portable Sirius radio during that time had only one option: purchase the XMP3i (an XM portable radio), sign up for XM satellite radio service, and then pay an extra fee for access to Sirius channels. Alternately, users could also download one of the smartphone apps (for IPhone, Android, or Blackberry) which were released later in 2010, but these do not offer many of the features and advantages that standalone portable satellite radios provide.
Read more about Sirius Stiletto: Models