Hey,

I spoke with steveeJ the maintainer of app-emulation/rkt and that 
package is also without a maintainer.  Please, feel free to take 
app-emulation/rkt, and if we're still the maintainers in two 
weeks, I'll mark it as maintainer-needed.

Short:

app-emulation/rkt will be marked maintainer-needed in two weeks if 
not claimed.

Regards,

-- 
Alex Brandt
Software Developer for Rackspace and Developer for Gentoo
http://blog.alunduil.com