I have a P509 with no data-plan (pay as you go). I often use wifi-calling though (when signal is weak/non-existant) as well as web2go when I don't have wifi access and need to get on the net.
I tried a couple of the custom ROMs, and I really like devoid, but I was unable to get these apps reinstalled. I tried using Titanium Backup to restore the apps, but restoring web2go hangs titanium backup, and restoring wifi-calling works, but wifi-calling generates an error when it tries to start. For now I'm back on the stock rom with a franco kernel, which seems to be working fine, but I'd love to go to a custom kernel.
I tried a couple of the custom ROMs, and I really like devoid, but I was unable to get these apps reinstalled. I tried using Titanium Backup to restore the apps, but restoring web2go hangs titanium backup, and restoring wifi-calling works, but wifi-calling generates an error when it tries to start. For now I'm back on the stock rom with a franco kernel, which seems to be working fine, but I'd love to go to a custom kernel.