I believe I have seen that, yes, but I'd forgotten the name. I wants one, too. Especially now that I've learned the expression "gliding stock" :-)

Actually, maglevs only hack the less important part of the problem, namely the rolling resistance - air resistance is a bigger factor. So what we really need are maglevs running in vacuum tunnels, as featured in Dan Dare comics in the 50s. I believe the Swiss are experimenting with vacuum tunnel trains; mrpj_antarctica tells me that Brunel tried to build one, but rats kept eating his greased-leather air seals...