I'm prototyping a mobile application to access Yahoo Groups from a mobile, for use with Freecycle groups. This is roll-your-own code rather than using any SDK, because I'm not aware of any SDK with Groups function.
I'm having trouble signing in from some phones. The way I'm doing this is starting from http://uk.m.yahoo.com/p/login, and then submitting the login forms with the appropriate cookies. This works on some phones/networks, but not on others.
Once I sign in, then I'm scraping the Groups web pages to get the information I need; it's the sign-in that's proving tricky.
Is there any other way to sign in to Yahoo which I could/should be using?