I'm throwing my vote in also. Even if you can't license the paper sheet in the PHB, D&D has been doing similar-looking full-page mult-page character sheets since at least the AD&D era, and pretty much every other RPG has as well. That's what a lot of players are used to and it ought to be possible to make your own in a similar fashion without infringing on anyone's intellectual property. It also seems to me like a good format for tablet (not phone) use. I would, however, suggest that instead of a separate sheet, you just make it a different view of the same data on the current 2024 sheet (presuming that will eventually get the same level of API/macro support as the 2014 sheet's data), and allow people to switch back and forth (as they can today from compact to standard view, just make "full page" a third view and allow separate pages for the "front page" stuff, the spells list, and maybe others). That ought to make it much easier (and faster to implement) than a wholly new sheet with the functionality of the old system, and easier to support as well. For me, an important aspect is capturing the "short and simple" info of the paper sheets. One row per item, smaller typeface, not the space-wasting white-space-heavy blocks of the 2024 sheet. I don't need to know that my shortsword is a finesse, light weapon that does piercing damage and has the vex property (although hovertext saying that wouldn't hurt), just that it's a shortsword and the attack & damage modifiers (which could be labels on buttons) and a short text description for the player (for stuff like "from the elven king"), just like the paper sheet allows.