I just got word that tomorrow — Wednesday, January 24, that is — Ethan Stowell, chef-owner of Union, is throwing open the doors of Tavolata in Belltown (2323 Second Ave., 838-8008). It’s a given that new restaurants take months longer than expected to open (Tilth being the exception), so though the original launch was planned for fall 2006, a one-season delay comes as no surprise. The Cliff Notes summary of Tavolata: high-end Italian cuisine, hand-made pastas, communal table. If you go, let me know what you think…