Is there a way to replace the message icon on the lockscreen with GV?

They most likely access whatever app you have set as default for those actions (Dialer & Messaging). This however, will never work with Google Voice, as it is not a Messaging application in the "normal" sense.

Google Voice has a messaging feature, but that's all it is, a feature. Plus isn't not SMS in the traditional sense either; it just sends messages over the internet. In any case it's more of an IM feature than it is a SMS feature.

 

oh..i didnt realize you can access your default. It appears that any other apps for phone or mms dont allow the long press from long screen to preview the message Handcent has a popup and while the app is nice....i dont like it as much as the stock. I prefer something a little more simple...plus...I use the swipe delete feature a lot.

As well as preview from lockscreen.

 

Well, if that's the case, then it CAN be changed from that "default messaging application" to any other application. I am no hardcore programmer, but it is definitely feasible.

 

I found some posts on XDA that say it can be done, but I'm double checking that now. I have GV set as my default sms in contacts, but it still only loads to the built-in one from the lock screen.

 

Technically, of course it can be written to be a shortcut to any app, but that's not what was asked. As it stands, you can only change it by changing your default messaging app system wide; but again, Google Voice is not a messaging application. So the system doesn't set Google Voice as a default messaging application.

Can it be re-written/re-coded to work with GV? Of course, anything is possible. Will it be re-written/re-coded for that purpose? Not likely.

 

i replaced the miui stock mms.apk with the mms from cm6 and had no issues

 

Hey, this may be looong overdue, but there was a dev that made an app that'll emulate the intent that was missing to make GV, as you put it, a "messaging" app. Follow the link, download, and enjoy!

[App] Google Voice Catcher for MIUI (updated 3/12/2011) - xda-developers

 

The app listed above works great for Google Voice!

 

For anyone who, like me, stumbles across this thread, that app still works great on the 2012.11.12 version of MIUI for the DroidX!