Thank you for contacting us. I'll add both of these as feature requests. I'm not sure, actually, why the "command + f" combination is not working. For the password field, I'm not sure why, but most apps do this in making the user tap into a field when a page loads, even if it is the only field on the page. At any rate, I'll add both of these feature requests for future development.
I think it would be neat to add support for keyboard shortcuts like CMD+F to search on iPad.
I'll throw this in as well - why do you need to select/focus the password field everytime you open the app on iPad?