Garmin Edge series are the ideal bike GPS.
However, if you need a new mobile phone I can't recommend the Nokia 5800 more highly – running the free Nokia Sportstracker app. NST is simplicity personified! Upload your routes to your own account ont the NST website as well as view them on the phone. Very very easy to use and very impressive.
Also, but not in you list of must haves is the £20 Viewranger App. A swift download and you have OS mapping of your choice. Just spent 2 weeks on the Isle of Wight and found it massively helpful. I'd literally have been lost without it! 😆
The batteries last for absolutely ages (more than a day using gps). Oh and you get BBC iPlayer capability – store hours worth of tv, web browsing, Youtube and Facebook capability, a music library and FM radio – 3.5mm audio jack. Mine even runs as a torch using the camera flash LEDs.
Sorry to go off on a tangent, but all my old GPS units are now drawer bound and are collecting dust. This is since I got my phone in February.
I still highly rate the Edge series, but you just can't beat having the whole shooting match in a mobile handset.