You realized that the new blockchain.info wallet is also a deterministic wallet and that therefore all you need to do is keep the SEED (12 words) and this backs up everything about the wallet (including all transactions etc.) just like all other deterministic wallets like Electrum and MultibitHD, right?
I don't know about that. I've tried restoring the wallet using the seed on both wallet. Multibit HD asked for a datestamp which is only available on wallet backups created using Multibit HD and Electrum didn't even accept the seed.