This 2600 mAh battery is built by Seidio for the T-Mobile G1. But should the Palm Pre suffer the same battery fate–1150 mAh–as rumored, you can bet your grandmother Seidio will jump on the opportunity immediately. Unfortunately, G1 or Palm Pre, the trade-off for extended battery life is the death of the thin form factor. But hey, it’s better than either a T-Mobile replacement battery or Seidio’s previous 1400 mAh G1 battery. The 2600 mAh monster will cost you $55.
via gizmodo

