Kernrechtsfrage
Whether the Tribunal Federal could enter into the appeal against the arbitral tribunal's letter of 29 February 2008 as an incidental decision.
Extrahierter Entscheid
The letter was not a separately notified incidental decision within the meaning of Art. 92-93 LTF and was therefore not immediately appealable.
Extrahierte Begründung
It was merely an information letter on how the tribunal intended to continue taking evidence; it lacked a formal ruling on competence or recusal, lacked sufficient reasoning, and contained no indication of remedies.