If you don't need to support really old mobile devices, the best certs going are, IMHO, Digicert. They get chained all the way back to Entrust: Not only that,

If you don't need to support really old mobile devices, the best certs going are, IMHO, Digicert. They get chained all the way back to Entrust: Not only that, they check your installed cert after you buy it and email you if you installed it incorrectly: http://www.digicert.com/help/ http://www.digicert.com/help/