I thought the Outbox died with the "feature" phone? All my androids on varying carriers have had conversation view for text messages. Even drafts showed up in the conversation for the contact which you started it with.
Samsung Galaxy S® 4 MJA Rooted with CF Auto-Root Tutorial
HTC EVO Design 4G™ v4.0.3 Bootloader Unlocked & Rooted with HTC SuperTool v3
If it ain't broke, use a sledge hammer.