Prion: There is, but it’s not as straighforward as I’m hoping it will be in the next release 
You need to dump just the contents of your existing MySQL db. Since boolean fields are integers in MySQL and either ‘f’ or ‘t’ in sqlite3, you’ll need at some point to change the contents. I suggest you do it when you’ve imported to sqlite3. It’s also not easy to merge the contents of the two dbs, so I would make sure that you empty the SQLite3 db first, then import the full contents from mysql. So, supposing that your existing MySQL db is called tracks1043, do this inside your new tracks-1.043 folder:
mysqldump -ct -u MYSQL_USERNAME -pMYSQL_PASSWORD tracks1043 > db/tracks-104-dump.sql
then:
sqlite3 db/tracks-104.db < db/tracks-104-dump.sql
Then you need to go into the SQLite3 db and convert the boolean fields from integers to ‘t/f’ values. The fields in question are:
* todos “done”
* contexts “hide”
* projects “done”
* users “is_admin”
As an example, here’s how you would convert the todos table done field:
sqlite3 db/tracks-104.db
sqlite> update todos
sqlite> set done = ‘f’
sqlite> where done = 0;
sqlite> update todos
sqlite> set done = ‘t’
sqlite> where done = 1;
sqlite> .q
Go through the same procedure for all the tables/fields I noted, and you should be OK. As I said, this will be made much more automated for the next stable release. I’m only half way there, but I wanted people to have a chance to use Locomotive with the latest release.
As for syncing, you *should* be able to just copy the sqlite3 db across between computers, but I haven’t tried it. What error do you get?
Reinier Balt: As I said, I’ll automate the process for the next release as much as I can, and will update the upgrade manual when the new stable release comes out. You shouldn’t really unzip *over* the old installation anyway, and this isn’t what I recommend. People using SQLite3 should be able to just copy over the db from the old installation to the new.
I decided not to make a point upgrade because it’s such a trivial change. It’s just security patched really.