Ask HN: Are older RFSs dated or still relevant?

Which (if any) of the older YC RFSs do you still feel is relevant today?

["Startup Ideas We'd Like to Fund", July 2008](https://web.archive.org/web/20140625020958/http://ycombinator.com/ideas.html)

["The Request for Startups", 16 August 2009 ](http://ycombinator.com/rfs.html)

["RFS 2: New Paths Through Product Space"](https://web.archive.org/web/20131027020234/http://ycombinator.com/rfs2.html)

["RFS 3: Things Built on Twitter"](https://web.archive.org/web/20131210035909/http://ycombinator.com/rfs3.html)

["RFS 4: New Ways to Use Live Video"](https://web.archive.org/web/20130524042619/http://ycombinator.com/rfs4.html)

["RFS 5: Development on Handhelds"](https://web.archive.org/web/20140428231118/http://ycombinator.com/rfs5.html)

[RFS 6: iPad Applications](https://web.archive.org/web/20130926122922/http://ycombinator.com/rfs6.html)

["RFS 7: Applications of Facebook Instant Personalization"](https://web.archive.org/web/20130928021512/http://ycombinator.com/rfs7.html)

["RFS 8: Ephemeralization Apps"](https://web.archive.org/web/20130910041719/http://ycombinator.com/rfs8.html)

["RFS 9: Kill Hollywood"](https://web.archive.org/web/20140606041708/http://ycombinator.com/rfs9.html)