I have 2 moments regarding virtual appliances
1) OVF template for ESXi makes by default BusLogic SCSI adapter, but it causes error below
Changing it to LSI logic parallel solve problemModule DevicePowerOn power on failed.
The BusLogic SCSI adapter is not supported for 64-bit guests. See the documentation for the appropriate type of SCSI adapter to use with 64-bit guests.
ESXi (vSphere Hypervisor) v4.1.0 build 260247
2) I was surprized, but ESXi OVF template was successifully imported into my local Oracle VirtualBox v4.0.6 buyild 71416