My phone (and ID etc.) go in a ziploc bag, they'd be totally saturated otherwise.

There's no room in my seat pack, and even if there was I wouldn't put it there. I'd forget it for sure. Plus I think the cumulative impact from bouncing against my multi-tool or spare CO2 canister over bumpy roads would kill it faster than anything.

My long sleeve jerseys have a button or zipper for at least one of the pockets, but I think I'm going to have to start safety pinning my phone in my short sleeve jerseys.