MySQL Config Settings for an EC2 Micro Instance

Anyone have some good MySQL config settings for an EC2 Micro instance? The sample config files that come along with MySQL are like 10 years old--one assumes you have a max 64MB of system RAM. Does anyone have some well-tuned settings for a micro EC2 instance? Or even a small instance?

Here are some settings that are used for RDS MySQL instances (RDS being sort of a stand-alone EC2 instance that's optimized to run MySQL):

binlog_cache_size=32768
innodb_buffer_pool_size={DBInstanceClassMemory*3/4}
innodb_file_per_table=1
innodb_log_buffer_size=8388608
innodb_log_file_size=134217728
key_buffer_size=16777216
max_binlog_size=134217728
max_connections={DBInstanceClassMemory/12582880}
read_buffer_size=262144
max_md_buffer_size=524288
thread_stack=196608

DBInstanceClassMemory appears to be a pseudo-variable that RDS makes available to you in your config. In the case of a small instance, then, this value should be 1.7GB or 1825361100.

Do these sound like reasonable settings to use, scaling that DBInstanceClassMemory down to 613MB for a micro instance?