This is the last notice for the Ultimate 1541 version 2.

from 1541 Ultimate homepage:

• It is now possible to order accessories for the 1541U-II. This is possible through the “Order Status” page. In case your unit has already been shipped, please create another order of 0 (zero) 1541U-II units, and add the accessories to that order.
• Tape connector boards have been ordered. Expect 150 of them in about 2 weeks. One board clicks under the 1541-II case; the other holds the 2×6 pin tape connector and tape feed-through. The two boards connect to each other using a standard 10-pin flat cable. The part that clicks under the 1541-II case can also be used to power the cartridge for stand-alone mode (requires software update). I am planning to ship the tape connector boards as build-it-yourself kits to keep it cheap. Assembly possible for a small extra fee.
• If you paid after June 1, you will need to wait until the new production batch is finished. You will receive an E-mail about this soon! (Refund possible..)

• New production startup completed! Some serious issues with component availability. The FPGAs will arrive first week of october. All other components or replacements have been found and ordered for >300 boards! [Ouch ouch!! If I didn't have so much faith in you guys, I'd be worried for a financial drama!]
• Payments have been processed until September 18, 2010.
• Since all component issues have been solved; I am now more confident on a feasible delivery of 1541Ultimate-II unts. Therefore, payments for the new batch are now accepted. I will put increased attention on received payments in the coming weeks. Please make your payment before the end of October.
• Last firmware version: 2.0RC8 is now downloadable from the download page. See the download page and read what issues have been addresed!

source: 1541ultimate.net