HEAT client will be open source at launch. HEAT server is MIT licensed and will be open sourced soon after launch if not at launch. It's not decided at this point due to conflicts of interest involved. JV partners and potential investors prefer closed source for some time to get ahead of competitors cloning our proprietary source based on 3 years of work. What we didn't account for when planning the otherwise beneficial closed source period, is that some exchanges understandably request open source. We still have to make sure whether that's publicly, and strictly at launch or if it can be 1-3 months afterwards.

As stated previously, we had to put quite a bit of effort to roll back our FIMK-related processes to base HEAT on the older version of NXT before it was GNU licensed. This has an important reason - Heat Ledger Ltd builds corporate solutions based on the HEAT technology that's MIT licensed (can be closed source). It's natural for corporate customers to request the exact software they use is NOT open source. In fact it's very difficult to obtain customers if the software terms state that the whole piece you provide them has to be published open source.

Our escrow partner C-CEX is being pressured by some ICO participants to cancel the ICO and buy the HEAT tokens back. We've agreed to provide the wallet and HEAT tokens within 4 days from now or the ICO funds on C-CEX would be used to buy back the HEAT pre-sale tokens. They also requested we need to adjust the HEAT API to contain full NXT-compatible RPC for the part that exchangers use. That's no problem and is actually useful to readily offer NXT-compatible procedures for easier barrier of entry for 3rd party integration.