Kealan Lennon is in ebullient form when we speak. You can hear it from the excitement in his voice, and the intent in his words. CleverCards, his digital payments platform, is operating in a hot space right now, with fintech companies and payment businesses closing massive capital raises and dominating new public listings. Lennon’s own business is not at that stage just yet, but the entrepreneur is determined to get there. When we last spoke in February, he disclosed that the company was negotiating two acquisitions and was in the midst of a funding round. Three months later, he has…