Verizon Palm Pre Plus MMS & WiFi: Not Friends
The thing about putting a phone on a new carrier - even if the hardware is virtually identical - is that there are always a handful of bugs that pop up. We have two from our forums that are looking something like confirmed. They aren't critical, deal-breaking bugs, but they are a hassle.
First up, long-time member dutchtrumpet points us to this thread about Verizon MMS and the gist is this: when WiFi is on, MMS messages aren't able to be sent. It looks as though the issue is that MMS message need to go through Verizon's EVDO network, but the Pre Plus is attempting to send them over WiFi. This isn't an issue for Sprint users thus far. The good news is that there is an easy workaround: just turn off WiFi before you attempt to send an MMS message.
The second bug is a little more worrying: it's starting to look like there is a fairly serious issue with GPS on Verizon Palm Pre Plus devices. The concern is that full, tower-assisted AGPS is only working for VZ Navigator and not other apps. The Fear, with a capital F, is that Verizon is playing their lock-down shenanigans again, but from what we can tell in this thread that's probably not the case, as Verizon Palm Pixi Plus apps are able to get quick GPS locks and also because Bell Pre phones are also having some hassles. A workaround that seems to help some comes from m0sim: open VZ Navigator (even if you haven't purchased it on your plan) before using GPS on other apps. GPS is a finicky feature, so diagnosing exactly what's happening here is going to take some time. The good news is that the massive and massively helpful PreCentral Forum community is on the case.
Either way, we're looking forward to webOS 1.4 and hoping it'll address these bugs.