I already filed a request for this with CloudMade about a month ago, but I just want to stress the importance of rendering ways that are marked as 'path' in full.
Right now, in the best case, tiles render the path but they don't render the path name. (OpenCycleMap renders the path name, but not the path itself, go figure.) In the worst case, unfortunately the default CloudMade tiles, paths are not rendered at all.
This makes the Cloudmade tiles very much unusable for all the mobile apps that are targetting hikers and bikers.
The goal of OSM is to create an all encompassing free maps database, but, let's be honest, when I'm in an urban environment, I'll use Google Maps, because that's what's all iPhone apps use and because it's information is complete enough. In my opinion, the real practical value for OSM is for those roads/trails/paths that are not covered by Google Maps. When I started with OSM in november last year, pretty much all open space preserve parks in the SF Bay Area were empty. I've added many hunderds of fire roads and single track trails everywhere and other have done the same. When you go there now to very popular parks for mountain bikers and hikers, a lot of them are now trail complete. It's exhilarating and something where Google Maps (and it's competitors) are absolutely nowhere.
For a mountain biker and a hiker, it's important to know if a trail is a single track or a fire road. We love the first and loath the latter. A single track is marked as 'path', a fire road is marked 'track'. I spend a lot of time annotating them correctly.
But in the last weeks, I've seen two cases where trails that I've added were changed from 'path' to 'track'. I sent a friendly email to the one who changed it. They were enthusiastic beginners at OSM who made the change because it would make a trail show up on CloudMade or OCM tiles. I can educate new users all I want about not tagging feature with the renderer in mind, but, think about it: it's pure coincidence that I stumbled into these modifications: they were in parks that were just a mile from my house. I don't know how many other incorrect modifications have been done because of this. All those changes are doing with the best intent: to make their features of interest show up on the map. Who can blame them?
(Maybe OSM needs some kind of change notification system, where interested parties get an email when something in a region of their interest has been changed?)
So, please, CloudMade, fix this. It would make a whole bunch of my iPhone map applications much more useful and will prevent people from making incorrect changes to the database.
Stepping off my soap box...