Android has come so far, yet we are missing so much. Not in terms of what other OS's have versus what we have, just in terms of what could make our OS even better, what Google needs to focus on. Let's take a deeper look at we all have been complaining about and how we can get it. Messaging, Google Apps, and Play Store. Integration and Multitasking … let me blow your mind.
What I find most interesting is that OEM's like Samsung already have native group messaging implemented into their messaging client. However they can only go so far with Android. The majority of us are waiting for Google to integrate all their messaging services into one. Google Talk, Voice, Regular SMS, Google+ all these service should be integrated into one another. The messaging client should be very clean and simple like their latest SMS App "Messaging." It would be also an added bonus if we could chose a theme also, not just in Messaging but all Google Apps. Let the user chose rather they prefer the light or dark version of Holo.
Next, Messaging should support group messaging, and if they really want to knock away the competition why not support multiple formats and files. Use the SMS protocol for SMS only, but within that same app let the user be able to send files, documents, or even media using a different protocol. (Think Go SMS). All these procedures could be worked out within the same App keeping the same interface. Google Drive support would be further integration – Keeping a backup of all your messages in the cloud even when you delete them from the phone.
Lastly, a killer feature for their SMS client would be to let the end user see when their message has been read, and when the other person is typing providing they are using the same client. When receiving a message especially with Jelly Bean I should be able to pull down the notification shade and see a status of an ongoing convo and be able to reply right then and there.
Let's take it one step further motion gestures. This may be taking it a bit too far but I love how putting the phone up to your face with the Galaxy S3 and Galaxy Note 2 will automatically call the person you are having a conversation with. A certain gesture or swipe (like Blackberry10) would be cool, only this would work for any conversations that are ongoing (like Gtalk) that way you can reply from anywhere and not have to go back into the app.
Google could have the ultimate messaging client, yet I feel they are a bit lazy in this area. What would make it perfect would be if we could download this client from the play store so no matter what Android phone we have, the app would still be available to us. Of course if your running ICS or above.