According to all the reports I could find, the "stock" email client for the G1 won't include MS Exchange support. Because of this, and the obvious benefit Exchange support would bring, I've been working on an API to easily add Exchange support to an email application. No need to worry about the underlying "how it works" for an email client developer. Included in it is planned for Calendar and contact support as well. Since my G1 will (hopefully) arrive on the 22nd, I've been pushing myself to have it complete by then.
Since I would rather not implement a full email client and instead just do the API, I realized that setting a deadline without cooperation from someone developing an email client was pretty useless. The current plan is to open source the API (it can likely be useful outside of Android and even in non-email related activities, like polling exchange for contact information for calls, or calendar related functionality).
Does anyone know of any email clients in development, or tasty rumors about the email client for the G1 getting open sourced so it can be added?




