[arch-general] Presto for pacman?

Is there something similar to Yum Presto[1] for pacman? Would it be possible to do, or are there limitations in the package format that prevents it? /M [1]: http://fedoraproject.org/wiki/Features/Presto -- Magnus Therning (OpenPGP: 0xAB4DFBA4) magnus＠therning．org Jabber: magnus＠therning．org http://therning.org/magnus identi.ca|twitter: magthe