I downloaded the TonePrint app on my iPhone/iPad, but it does not show any TonePrint for the T2 Reverb?
No worries, this is normal. The TonePrint app uses standard Hall Of Fame TonePrints for the T2. The only difference between the Hall Of Fame and the T2 are the Reverb presets. The T2 has the famous Etheral1 and 2 which appeared on the Trinity Classic and made it famous.